@Karlos
How about Firefox 1.0.4 having display issues? (I can email the screenshot) During the first tests things seem to display fine. Upgradign the browser means upgrading the entire linux distro, and i don't have the time for that.
I hate to say it, but Fx 1.x is completely obsolete now. There's no official support for it anywhere. After all, 3.5 is almost out. Unless you are running a server and your boxes uptime is critical to you, I'd suggest you just install an entirely new version of the OS. I wouldn't even bother upgrading, just back up your /home directory someplace and make sure your new user gets the same user id as your existing one (or just chown the lot of it afterwards). If Fx 1 is the default version for your distro, it must be pretty old by now,
Complaining that a site doesn't render properly in Fx 1.x when the majority of users are on 3.x is like complaining an application for your amiga doesn't work as well under Kickstart 1.2 as it does on 3.9.