1.Login to your blogger dashboard--> layout- -> Edit HTML

2.Scroll down to where you see </head> tag .

3.Copy below code and paste it just before the </head> tag.

<script src='http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js' type='text/javascript'/>

<script type='text/javascript'>
//<![CDATA[

//** Created: March 19th, 08'
//** Aug 16th, 08'- Updated to v 1.4:
//1) Adds ability to set speed/duration of panel animation (in milliseconds)
//2) Adds persistence support, so the last viewed panel is recalled when viewer returns within same browser session
//3) Adds ability to specify whether panels should stop at the very last and first panel, or wrap around and start all over again
//4) Adds option to specify two navigational image links positioned to the left and right of the Carousel Viewer to move the panels back and forth

//** Aug 27th, 08'- Nav buttons (if enabled) also repositions themselves now if window is resized

var stepcarousel={
ajaxloadingmsg: '<div style="margin: 1em; font-weight: bold"><img src="ajaxloadr.gif" style="vertical-align: middle" /> Fetching Content. Please wait...</div>', //customize HTML to show while fetching Ajax content
defaultbuttonsfade: 0.4, //Fade degree for disabled nav buttons (0=completely transparent, 1=completely opaque)
configholder: {},

getCSSValue:function(val){ //Returns either 0 (if val contains 'auto') or val as an integer
 return (val=="auto")? 0 : parseInt(val)
},

getremotepanels:function($, config){ //function to fetch external page containing the panel DIVs
 config.$belt.html(this.ajaxloadingmsg)
 $.ajax({
  url: config.contenttype[1], //path to external content
  async: true,
  error:function(ajaxrequest){
   config.$belt.html('Error fetching content.<br />Server Response: '+ajaxrequest.responseText)
  },
  success:function(content){
   config.$belt.html(content)
   config.$panels=config.$gallery.find('.'+config.panelclass)
   stepcarousel.alignpanels($, config)
  }
 })
},

getoffset:function(what, offsettype){
 return (what.offsetParent)? what[offsettype]+this.getoffset(what.offsetParent, offsettype) : what[offsettype]
},

getCookie:function(Name){
 var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
 if (document.cookie.match(re)) //if cookie found
  return document.cookie.match(re)[0].split("=")[1] //return its value
 return null
},

setCookie:function(name, value){
 document.cookie = name+"="+value
},

fadebuttons:function(config, currentpanel){
 config.$leftnavbutton.fadeTo('fast', currentpanel==0? this.defaultbuttonsfade : 1)
 config.$rightnavbutton.fadeTo('fast', currentpanel==config.lastvisiblepanel? this.defaultbuttonsfade : 1)
},

addnavbuttons:function(config, currentpanel){
 config.$leftnavbutton=$('<img src="'+config.defaultbuttons.leftnav[0]+'">').css({zIndex:50, position:'absolute', left:config.offsets.left+config.defaultbuttons.leftnav[1]+'px', top:config.offsets.top+config.defaultbuttons.leftnav[2]+'px', cursor:'hand', cursor:'pointer'}).attr({title:'Back '+config.defaultbuttons.moveby+' panels'}).appendTo('body')
 config.$rightnavbutton=$('<img src="'+config.defaultbuttons.rightnav[0]+'">').css({zIndex:50, position:'absolute', left:config.offsets.left+config.$gallery.get(0).offsetWidth+config.defaultbuttons.rightnav[1]+'px', top:config.offsets.top+config.defaultbuttons.rightnav[2]+'px', cursor:'hand', cursor:'pointer'}).attr({title:'Forward '+config.defaultbuttons.moveby+' panels'}).appendTo('body')
 config.$leftnavbutton.bind('click', function(){ //assign nav button event handlers
  stepcarousel.stepBy(config.galleryid, -config.defaultbuttons.moveby)
 })
 config.$rightnavbutton.bind('click', function(){ //assign nav button event handlers
  stepcarousel.stepBy(config.galleryid, config.defaultbuttons.moveby)
 })
 if (config.panelbehavior.wraparound==false){ //if carousel viewer should stop at first or last panel (instead of wrap back or forth)
  this.fadebuttons(config, currentpanel)
 }
},

alignpanels:function($, config){
 var paneloffset=0
 config.paneloffsets=[paneloffset] //array to store upper left offset of each panel (1st element=0)
 config.panelwidths=[] //array to store widths of each panel
 config.$panels.each(function(index){ //loop through panels
  var $currentpanel=$(this)
  $currentpanel.css({float: 'none', position: 'absolute', left: paneloffset+'px'}) //position panel
  $currentpanel.bind('click', function(e){return config.onpanelclick(e.target)}) //bind onpanelclick() to onclick event
  paneloffset+=stepcarousel.getCSSValue($currentpanel.css('marginRight')) + parseInt($currentpanel.get(0).offsetWidth || $currentpanel.css('width')) //calculate next panel offset
  config.paneloffsets.push(paneloffset) //remember this offset
  config.panelwidths.push(paneloffset-config.paneloffsets[config.paneloffsets.length-2]) //remember panel width
 })
 config.paneloffsets.pop() //delete last offset (redundant)
 var addpanelwidths=0
 var lastpanelindex=config.$panels.length-1
 config.lastvisiblepanel=lastpanelindex
 for (var i=config.$panels.length-1; i>=0; i--){
  addpanelwidths+=(i==lastpanelindex? config.panelwidths[lastpanelindex] : config.paneloffsets[i+1]-config.paneloffsets[i])
  if (config.gallerywidth>addpanelwidths){
   config.lastvisiblepanel=i //calculate index of panel that when in 1st position reveals the very last panel all at once based on gallery width
  }
 }
 config.$belt.css({width: paneloffset+'px'}) //Set Belt DIV to total panels' widths
 config.currentpanel=(config.panelbehavior.persist)? parseInt(this.getCookie(window[config.galleryid+"persist"])) : 0 //determine 1st panel to show by default
 config.currentpanel=(typeof config.currentpanel=="number" && config.currentpanel<config.$panels.length)? config.currentpanel : 0
 if (config.currentpanel!=0){
  var endpoint=config.paneloffsets[config.currentpanel]+(config.currentpanel==0? 0 : config.beltoffset)
  config.$belt.css({left: -endpoint+'px'})
 }
 if (config.defaultbuttons.enable==true){ //if enable default back/forth nav buttons
  this.addnavbuttons(config, config.currentpanel)
  $(window).bind("load, resize", function(){ //refresh position of nav buttons when page loads/resizes, in case offsets weren't available document.oncontentload
   config.offsets={left:stepcarousel.getoffset(config.$gallery.get(0), "offsetLeft"), top:stepcarousel.getoffset(config.$gallery.get(0), "offsetTop")}
   config.$leftnavbutton.css({left:config.offsets.left+config.defaultbuttons.leftnav[1]+'px', top:config.offsets.top+config.defaultbuttons.leftnav[2]+'px'})
   config.$rightnavbutton.css({left:config.offsets.left+config.$gallery.get(0).offsetWidth+config.defaultbuttons.rightnav[1]+'px', top:config.offsets.top+config.defaultbuttons.rightnav[2]+'px'})
  })
 }
 this.statusreport(config.galleryid)
 config.oninit()
 config.onslideaction(this)
},

stepTo:function(galleryid, pindex){ /*User entered pindex starts at 1 for intuitiveness. Internally pindex still starts at 0 */
 var config=stepcarousel.configholder[galleryid]
 if (typeof config=="undefined"){
  alert("There's an error with your set up of Carousel Viewer \""+galleryid+ "\"!")
  return
 }
 var pindex=Math.min(pindex-1, config.paneloffsets.length-1)
 var endpoint=config.paneloffsets[pindex]+(pindex==0? 0 : config.beltoffset)
 if (config.panelbehavior.wraparound==false && config.defaultbuttons.enable==true){ //if carousel viewer should stop at first or last panel (instead of wrap back or forth)
  this.fadebuttons(config, pindex)
 }
 config.$belt.animate({left: -endpoint+'px'}, config.panelbehavior.speed, function(){config.onslideaction(this)})
 config.currentpanel=pindex
 this.statusreport(galleryid)
},

stepBy:function(galleryid, steps){
 var config=stepcarousel.configholder[galleryid]
 if (typeof config=="undefined"){
  alert("There's an error with your set up of Carousel Viewer \""+galleryid+ "\"!")
  return
 }
 var direction=(steps>0)? 'forward' : 'back' //If "steps" is negative, that means backwards
 var pindex=config.currentpanel+steps //index of panel to stop at
 if (config.panelbehavior.wraparound==false){ //if carousel viewer should stop at first or last panel (instead of wrap back or forth)
  pindex=(direction=="back" && pindex<=0)? 0 : (direction=="forward")? Math.min(pindex, config.lastvisiblepanel) : pindex
  if (config.defaultbuttons.enable==true){ //if default nav buttons are enabled, fade them in and out depending on if at start or end of carousel
   stepcarousel.fadebuttons(config, pindex)
  }
 }
 else{ //else, for normal stepBy behavior
 pindex=(pindex>config.paneloffsets.length-1 || pindex<0 && pindex-steps>0)? 0 : (pindex<0)? config.paneloffsets.length+steps : pindex //take into account end or starting panel and step direction
 }
 var endpoint=config.paneloffsets[pindex]+(pindex==0? 0 : config.beltoffset) //left distance for Belt DIV to travel to
 if (pindex==0 && direction=='forward' || config.currentpanel==0 && direction=='back' && config.panelbehavior.wraparound==true){ //decide whether to apply "push pull" effect
  config.$belt.animate({left: -config.paneloffsets[config.currentpanel]-(direction=='forward'? 100 : -30)+'px'}, 'normal', function(){
   config.$belt.animate({left: -endpoint+'px'}, config.panelbehavior.speed, function(){config.onslideaction(this)})
  })
 }
 else
  config.$belt.animate({left: -endpoint+'px'}, config.panelbehavior.speed, function(){config.onslideaction(this)})
 config.currentpanel=pindex
 this.statusreport(galleryid)
},

statusreport:function(galleryid){
 var config=stepcarousel.configholder[galleryid]
 var startpoint=config.currentpanel //index of first visible panel
 var visiblewidth=0
 for (var endpoint=startpoint; endpoint<config.paneloffsets.length; endpoint++){ //index (endpoint) of last visible panel
  visiblewidth+=config.panelwidths[endpoint]
  if (visiblewidth>config.gallerywidth){
   break
  }
 }
 startpoint+=1 //format startpoint for user friendiness
 endpoint=(endpoint+1==startpoint)? startpoint : endpoint //If only one image visible on the screen and partially hidden, set endpoint to startpoint
 var valuearray=[startpoint, endpoint, config.panelwidths.length]
 for (var i=0; i<config.statusvars.length; i++){
  window[config.statusvars[i]]=valuearray[i] //Define variable (with user specified name) and set to one of the status values
  config.$statusobjs[i].text(valuearray[i]+" ") //Populate element on page with ID="user specified name" with one of the status values
 }
},

setup:function(config){
 //Disable Step Gallery scrollbars ASAP dynamically (enabled for sake of users with JS disabled)
 document.write('<style type="text/css">\n#'+config.galleryid+'{overflow: hidden;}\n</style>')
 jQuery(document).ready(function($){
  config.$gallery=$('#'+config.galleryid)
  config.gallerywidth=config.$gallery.width()
  config.offsets={left:stepcarousel.getoffset(config.$gallery.get(0), "offsetLeft"), top:stepcarousel.getoffset(config.$gallery.get(0), "offsetTop")}
  config.$belt=config.$gallery.find('.'+config.beltclass) //Find Belt DIV that contains all the panels
  config.$panels=config.$gallery.find('.'+config.panelclass) //Find Panel DIVs that each contain a slide
  config.onpanelclick=(typeof config.onpanelclick=="undefined")? function(target){} : config.onpanelclick //attach custom "onpanelclick" event handler
  config.onslideaction=(typeof config.onslide=="undefined")? function(){} : function(beltobj){$(beltobj).stop(); config.onslide()} //attach custom "onslide" event handler
  config.oninit=(typeof config.oninit=="undefined")? function(){} : config.oninit //attach custom "oninit" event handler
  config.beltoffset=stepcarousel.getCSSValue(config.$belt.css('marginLeft')) //Find length of Belt DIV's left margin
  config.statusvars=config.statusvars || []  //get variable names that will hold "start", "end", and "total" slides info
  config.$statusobjs=[$('#'+config.statusvars[0]), $('#'+config.statusvars[1]), $('#'+config.statusvars[2])]
  config.currentpanel=0
  stepcarousel.configholder[config.galleryid]=config //store config parameter as a variable
  if (config.contenttype[0]=="ajax" && typeof config.contenttype[1]!="undefined") //fetch ajax content?
   stepcarousel.getremotepanels($, config)
  else
   stepcarousel.alignpanels($, config) //align panels and initialize gallery
 }) //end document.ready
 jQuery(window).bind('unload', function(){ //clean up
  if (config.panelbehavior.persist){
   stepcarousel.setCookie(window[config.galleryid+"persist"], config.currentpanel)
  }
  jQuery.each(config, function(ai, oi){
   oi=null
  })
  config=null
 })
}
}

//]]>
</script>

<style type='text/css'>
#myslides{
background:#2c3133;
}
.stepcarousel{
position: relative; /*leave this value alone*/
overflow: scroll; /*leave this value alone*/
width: 95%; /*Width of Carousel Viewer itself*/
height: 165px; /*Height should enough to fit largest content's height*/
margin: 0px 14px 5px 14px;
background:#2c3133;
}
.stepcarousel .belt{
position: absolute; /*leave this value alone*/
left: 0;
top: 0;
}
.stepcarousel .panel{
float: left; /*leave this value alone*/
overflow: hidden; /*clip content that go outside dimensions of holding panel DIV*/
margin: 10px 17px ; /*margin around each panel*/
width:220px; /*Width of each panel holding each content. If removed, widths should be individually defined on each content DIV then. */
background:#202325;
height:140px;
border:1px solid #393f42;
}
.stepcarousel .panel p{
text-align: left; /*leave this value alone*/
overflow: hidden; /*clip content that go outside dimensions of holding panel DIV*/
margin: 5px 5px ; /*margin around each panel*/
}
.stepcarousel .panel h2{
text-align: left; /*leave this value alone*/
height:20px;
overflow: hidden; /*clip content that go outside dimensions of holding panel DIV*/
margin: 2px 5px ; /*margin around each panel*/
font-size:16px;
font-weight:bold;
text-align:center;
font-family:Georgia,century gothic,Arial,verdana, sans-serif;
}
.stepcarousel .panel img{
float: left; /*leave this value alone*/
background:#040404; /*clip content that go outside dimensions of holding panel DIV*/
margin: 10px 10px 10px 10px; /*margin around each panel*/
padding:0px 0px;
}
</style>

Note : You can change width value as your choice.

4.Now save your template.

5.Go to Layout-->Page Elements and click on "Add a gadget".

6.Select "html/java script" and add the code given below and click save.

<div id="myslides">

<script type="text/javascript">
stepcarousel.setup({
galleryid: 'mygallery', //id of carousel DIV
beltclass: 'belt', //class of inner "belt" DIV containing all the panel DIVs
panelclass: 'panel', //class of panel DIVs each holding content
panelbehavior: {speed:500, wraparound:true, persist:true},
defaultbuttons: {enable: true, moveby: 2, leftnav: ['https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigydqi__JLTSS_p1F-m-HJrxxEgT7rQ7LCYb7sUzFs7oIsuapiS2TPDRMgUQIBe79LrxyJob8tCNK7AlYIp0QfjlxZRca7-BeIi3ToUTbcBhjyj36RrScgWBQeEjbx2rbg9oySAPBm37wC/', -14, 60], rightnav: ['https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg6nrQLQF13b2wHUCrS06ktutTyeTHnPodKzEP7beEEcxnsJegXWvcY421BoKogssgxa52zKWNG0BV6iFkCIjpbOP3tNNlCOyEM8cje9gtqDsL-Hcx4Snq938BJ0WqSgvNGkg43_HOJIfih/', 0, 60]},
statusvars: ['statusA', 'statusB', 'statusC'], //register 3 variables that contain current panel (start), current panel (last), and total panels
contenttype: ['external'] //content setting ['inline'] or ['external', 'path_to_external_file']
})
</script>


<div id="mygallery" class="stepcarousel">
<div class="belt">

<div class="panel">
<a href="#" title="NFS Most Wanted">
<img alt="NFS Most Wanted" width="200" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjGRLFQh8pT_v4dtYMPPE72bCdLby4GPIPrvLf41-tGsfDS51uquUF7v6Tw8xQabB27SiU_p2Vj8eYqqp-YAnxu7bPaWkzjDA7XUXR_Yzw3DhK4B2WMp3hGqeFh90EPbPdZakY4oxPoQKzH/+Most+Wanted.jpg" height="120"/>
</a>
</div>

<div class="panel">
<a href="#" title="Call Of Duty">
<img alt="Call Of Duty" width="200" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhN3Ecy2tcoeJ352EUk95bG8cDwM5tN_2oj3VaPe_Ze2vTZNVdcBCGl1TrS40hWR_Jxp_CqnKlJohqE5Z4KFexP_Op01IbLGlQRVICmYorksEtOSh_6VtznqmA5KqZJlj2pH6ZciODuUwkH/+Of+Duty.jpg" height="120"/>
</a>
</div>

<div class="panel">
<a href="#" title="MaxPayne3 Game">
<img alt="MaxPayne3 Game" width="200" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCND_Kn4nKrIsAvmwc45XfcV_MTVcGO3Lvm5BaSkTCheItDrD9T64-RDhwcso07dl-ubHCjZ8vJm4m4-Ih0T59Iu8M9STz3CTN3Cylq2DNh_-x4KgdZLg9Dq8_EIs4UYbUSuEMugBRD4x4/+game.gif" height="120"/>
</a>
</div>

<div class="panel">
<a href="#" title="Tomb Raider">
<img alt="Tomb Raider" width="200" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgB3_mVTUGTANi2xapjb5Tg79-WTPUXtjZMihlEP_b4b6HOgVi-iuBesZ6prPqIE26tmn3ycU7MKnWjvNfpj4ATSnXRlhgF21YwFR25pcDesQ7wawPY5rxhzVeyAO60S8TpjLU__woSnTVV/+Rider.jpg" height="120"/>
</a>
</div>

<div class="panel">
<a href="#" title="Harry Potter">
<img alt="Harry Potter" width="200" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEimtlIFlUOkq_5pbJJPPXRPSLvQk3mFPEV1MsnEj1ZPqaVv2ZIfCjdWkh4iMA2jWRs24UBIDRqUgOM8JdKt-ME2JgizxG0xpaG4NP_OrBoINLtbCUdR77JFl33tyeke09fmLHrlnP86Olfn/+potter.jpg" height="120"/>
</a>
</div>

<div class="panel">
<a href="#" title="NFS ProStreet">
<img alt="NFS ProStreet" width="200" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmH3x3eRiLgkpZ0RWKk7cAc1dSf5ZMYlmKZJWWzkt4QPR3s8WrUAgGcriqp1DTfSKYDmahKN0ZRUBqMn-8HQpQmuFEpplJnoWcThm5QTwrEYRqPSrCwMafdnvODRNXdnrqIBteM88i5ulg/+ProStreet.jpg" height="120"/>
</a>
</div>

<div class="panel">
<a href="#" title="MaxPayne Movie">
<img alt="MaxPayne Movie" width="200" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhqZVPnfMZT8JQ63eTejq_kOKoLttBunDtTBalYIp3H3XizUgsz6hot1wVh7hFZM1wsSFCACL2wYWaKnlLqdaCcwjNN3KrongfvtzPxtQejU9PwMKSCDKtUBi7ehuFJL9E5jZstKV0HoNDM/+movie.jpg" height="120"/>
</a>
</div>

<div class="panel">
<a href="#" title="NFS Undercover">
<img alt="NFS Undercover" width="200" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9limBbwMV91ri1wCmjZKahBqS6d-Mqd_voiXYoUY0hOg7ql1szyF_PbHGhbi1e5n6e2Y9hqnTecbsfk-i4TjuX4KdNegNEPCLLmRX32ALYvFftCxRjushae1Js1hx5WcM5Q90Pv8TBEzc/+Undercover.jpg" height="120"/>
</a>
</div>

</div>
</div>
</div>

Note: Host above 2 images yourself.

You are done.It will look like this: