facebook share doesnt grab post

I had this working correctly and then I installed a facebook plugin that allowed people to register using facebook and everthing broke. I took everything off.

So now when I go on http://www.facebook.com/facebook-widgets/share.php and copy this

<a name="fb_share" type="button" href="http://www.facebook.com/sharer.php">Share</a><script src="http://static.ak.fbcdn.net/connect.php/js/FB.Share" type="text/javascript"></script>

into the correct area I get the correct icon. When I click ‘share’ and a post it grabs the wrong image and it does not include the content of the post.