Is this right ?
Code:
<iframe src="http://www.facebook.com/plugins/like.php?href=http://www.mixlogy.com/vb/showthread.php$session[sessionurl]?p=$post[postid]&show_faces=true&width=450&action=like&colorscheme=light&height=80" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:450px; height:80px;" allowTransparency="true">
<meta property="og:site_name" content="Mixlogy.com"/>
<meta property="og:image" content="http://www.mixlogy.com/vb/images/mix.gif"/>
<meta property="fb:admins" content="100000769173722"/>
</iframe>