The page contains two buttons, from twitter and from facebook.
What I\'m observing in Firefox 3.5.15 is:
I can't tell you what's going on in there and I don't even want to think about what < fb:headache >
does there, but you should be able to resolve this issue by floating the iframe for the twitter button left and adding some margin-right to get the original look back.
iframe.twitter-share-button { float: left; margin-right: 4px; }
It's a little hackish, but should do.
UPDATE
.fb_iframe_widget { display: block !important; }
// leave important away if possible!
// change main.css / line 41:
div.text {
clear: left;
margin: 0 auto;
padding: 35pt 5pt 15pt;
width: 40em;
}