This is best fit for side widgets and to install this widget on your blog you need to do is very simple just fallow the below simple steps :
Go to your blooger dashboard
1) Select --layout ---Add widget
2) from the list of widgets select Html/javascript then
copy the bleow code and paste
3)After making changes in the code save it
<style scoped="" type="text/css">
ul.rdmrcpostag{text-align:left;font:normal normal 11px Verdana,Geneva,sans-serif}
ul.rdmrcpostag,ul.rdmrcpostag li{margin:0;padding:0;list-style:none;overflow:hidden}
ul.rdmrcpostag{background:aliceBlue}
ul.rdmrcpostag li{padding:5px}
ul.rdmrcpostag b a{color:#00699B}
ul.rdmrcpostag .thumbp{float:left;margin:0 5px 3px 0}
ul.rdmrcpostag img{padding:3px;border:1px solid #B1B1B1;background:#F3F3F3}
ul.rdmrcpostag .datex{font-size:8px;margin:3px 0 0}
ul.rdmrcpostag .dt{margin:0 5px 0 0;padding:0 5px 0 0;border-right:1px solid #7A7A7A}
ul.rdmrcpostag p{margin:5px 0 0}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js" type="text/javascript"></script>
<script src="http://ivyth.googlecode.com/svn/js/rdmrecpostajax.js" type="text/javascript"></script>
<div id="randomcecent_posts_id"></div>
<script type="text/javascript">
//<![CDATA[
$(window).load(function(){
RandomRecenTag({
blogURL: "",
MaxPost: 6,
RandompostActive: true,
thumbSize:55,
jumlahhuruf:100,
cmtext:"Komentar",
NoCmtext:"No Comment",
tagName:false,
idcontaint: "#randomcecent_posts_id"
});
});
//]]>
</script>
After pasting the above code in the widget box before saving it you need to make some changes in the code as you can see Red color highlited code whereas red color highlited code is there in the there you need to provide your Blog url and Thumsize and MaxPost, RandompostActive, TagName these are optional but you shouldn't forgot to replace your blog url if you do so the widget will not show any posts, so for clear understanding of making changes in the code fallow the below instructions
BlogURL url_blog:"http://40tricks.blogspot.in/"
MaxPost default: 5
RandompostActive default: true
idcontaint
idcontaint:"#randomcecent_posts_id"., default :"#randompost:".
thumbSize default: 100
cmtext default: "comments" .
pBlank default: "http://2.bp.blogspot.com/-D47WWjFZXdk/UP1z- A5uCuI/AAAAAAAAH98/heTBvxq49No/s1600/noimage.jpg
NoCmtext default "No Comment".
tagName default: false.
If your facing any problem while installing this widget on your blog please let me know by commenting below
For Further Reading,