Rendering problems with Firefox

[Cable Guy]

Hello,
I am using zencart 1.3.8a + customized silverfish template. So i have problems when viewing products in column layout. Problem only using firefox, opera and ie shows page fine.
Errors does not appear all the time it is like 1 in 5-6 times.

Shop address: http://nookie.no-ip.org

Images with errors
http://nookie.no-ip.org/images/listing_ok.jpg <--- Everything Fine
http://nookie.no-ip.org/images/listing_error.jpg <--- Error 1
http://nookie.no-ip.org/images/listing_error_2.jpg <--- Error2

Can anybody help to fix this issue?

[Cable Guy]

Sorry, din't know how could this happen, but looks like posted in the wrong forum.
Would be glad if someone could move it to "Page Layout Changes".

[Kim]

You are using a contributed template. You are in the correct forum.