New WordPress Site Breaks in Netscape 7.x

Hello:
I’m trying to solve a little mystery here. I’ve tested out having my site viewed in Netscape 7.2 on the Mac side. The header and footer appears fine, but no content or sidebar to be viewed.

This is the code from the source of the generated home page. It’s based on the “Landzilla” theme; I’ve made modifications, but as you can see some items need to be updated. Anyway, here it is…

[edited out lengthy code, please see post below]

Thanks!
Velanche