You can't really go wrong with simple layouts. Its a niceish green (as nice as green can be). Perhaps you could have the navigation links displaying as blocks so that you can put your cursor near the link and it would select it rather than having to go over them.
The design is very simple and green, which isn't bad however the size of it is a bit on the small side, I think if you brought in a few more colours other than just green and make it wider you will have a good design there. This is a good design that would work for many different companies.
I like the look of the layout, but as noerrorsfound said, your code is horrible, proprietary-browser crap. Why do you even bother using XHTML 1.0 if you're just going to use presentational markup everywhere?
Other than that, it's a good layout. There's something about the green that I don't like, but I can't quite point it out.
I am not one of these coders who makes it standards compliant. My theory is that if it works, then nothing needs to be changed.
The width thing, shall get updated. I didnt make it XHTML 1.0 on purpose, I just created a new document in dreamweaver.
As for the tables thing, I will probably eventually get round to code the whole thing in CSS and DIVS and make the code neater, but this template was a spur of the moment thing, that I did just to waste a bit of time.
In fact it is probably the quickest template I have ever designed!