table percentages and Netscape

I've always used nested tables for page layout and I'm trying to 
simplify my page layout techniques. I'm also beginning to learn CS 
and HTML 4.0 compliance methods. To that end, I'm trying to achieve a 
very simple layout effect using a table set to 100% width. 
Unfortunately, Netscape (Mac) doesn't like display it properly.

Can you look at the following page in Netscape (Mac and PC) and 
comment on the problem:

http://kaos.org/test/test.html

Also, can anyone recommend a site that monitors the various flaws and 
inconsistencies in the way browsers work? I've got lots of reference 
sites that recommend using percentages for tables but none of them 
mention that Netscape has problems displaying them.

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