VIEWING IN FIREFOX

Hey guys,
so what my problem is right now is i run a blog (blog.robustflavor.com)
we get good traffic but just recently the blog has been showing up
messed up in firefox, glitching so that all of the sudden you see two rows.
and the banners on the right side go all the way to the bottom of the page.
it is very wierd.

if anyone can check out our blog (blog.robustflavor.com) and see if you
have any solutions to the problem PLEASE contact me at mikecherman(at) gmail{dot}com

please please please someone help us out here!