[kube]

Hehe what's wrong with testing in IE too ;D
Although we all hate to say it, make sure it's displaying correctly in IE otherwise - nightmares. Firefox and Netscape are almost the same mozilla based browser I thought (dependent on versions).

Perhaps first get it back to a state where everything looked fine and compare, in steps, what the differences made for each particular addition that you made.

Also check if your tables are set up correctly: copy the source directly from your browser and paste it into a testpage.html and see if your html-editor such as Dreamweaver spots any ill-formed (non-closed) tables. The editor will most likely help you spot whats up with the tables going in all sorts of directions - whether it's a typo, a wrong percentage, etc.

Maybe capture the source and paste the code into your editor when you see the page when it is really screwed up and then compare the code to what is on the refreshed still badly screwed page (not sure what could be doing that to be honest).

Another thought without being able to look at your source: look into your css to see if you made any additions in there that could affect the layout. (temporarily remove the skin1.css to see if the layout sits the way it should)

Regarding background images: perhaps this has something to do with the tables too, get another testpage.html to see if they both display the background in a simple state and, again, in steps to see what additional code is making the background disappear. If you haven't already, use css to display backgrounds.

Remember to back up.

Hope this helps.
Regards,
Doms