I just provided you with a base utilizing your current layout scheme. Just because it looks right doesn't mean it is. There are many things to consider and leaving the code generation up to a piece of software is never a wise decision as you don't really know what it is doing. You have to take in account many things such as people with smaller screen resolutions, text only browsers, screen readers, the ability to print the page, view it on mobile devices, the site needs to display in a logical way with or without visual styling, things need to be labeled correctly, i.e. alt tags on images, titles on links and such.

Not to mention that if coded correctly it is far easier to make updates, changes, and modify the site based on needs.

As for centering a layout all you need is margin:0 auto; or text-align:center; on the body element. 50% and negative margins are a bumkus way of going about it.

We are not trying to put you down here, you asked for help and people are giving it. you may not like everything you see but it is all honest to goodness comments and advice. using semantic markup and correct methods you will eliminate the problems and errors you are currently having. These are professionals looking at your work and giving input based on their experiences and knowledge. being as such you will get much more detailed comments and comments that may make you feel attacked or put down. Take it all in stride and see what can be learned from it.

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I hate IE 6. Just sayin....