Thanks for the link. The issue is actually from an optimization we put into the latest release of JFBConnect. Basically, Facebook needs to be instructed that the current page is using any of their social widgets. Up until v6.0, we always told Facebook that a tag was on the page and to try to find it.. even if none were there.
In v6.0, we only tell Facebook to scan the page and render the tags if JFBConnect has added one of their social widgets. This saves considerable time on page load and makes sites much more responsive overall when there's not a Facebook widget on the page.
On your site though, you're using a different module to add the tags, so what we're doing seems to be causing you problems. In general, we wouldn't recommend using another widget, since on your site, the Facebook Javascript library is loading two times (once from JFBC, once from the other module). That will slow down your page load time by a decent amount and could cause other conflicts with some features.
However, if that's how you want to keep things, please edit the /components/com_jfbconnect/libraries/provider/facebook.php file. Around line 477, you'll see:
$xfbml = ($this->widgetRendered ? 'true' : 'false');
Add the following right after that:
I hope that helps explain and gets you going,
Alex