comments are scrambled for Atahualpa theme

For some reason, the comments get jumbled up together in Firefox 3. See comments here for an example; http://www.foodandthings.com/2008/11/thanksgiving-gluten-free-baking/

Anyone who is using this template know why the are scrambled together? It works fine in IE6,IE7.

I only had 2 plugins activated, Share-This and Print-WP. I deactivated both and I still get the jumbled comments.

Thoughts?