I have BlogEngine.net platform for only a day now and I wanted to integrate Facebook "Like" button in it. It apeeared much more easier than I thougth. All I had to to is open the ~/themes/MY-BLOG_THEME and edit PostView.ascx by adding following script where I foun appropriate:
<iframe src="http://www.facebook.com/plugins/like.php?href=<%=Post.PermaLink %>&layout=button_count&show-faces=true&width=50&height:25px&action=like&colorscheme=light" scrolling="no" frameborder="0" allowTransparency="true" style="border:none; overflow:hidden; width:100px; height:25px;float:left;"></iframe>
This was all. Maybe I need to get play to web frontend more often to refresh my skills :)