OK so my site is organized completely by divs. I guess I could have used tables, but I used divs. Anyways, my problem is, I want to put my entire site under one div or something so that it is always centered when people visit my site. Some people have 800x600 res or 1024 x 768 res, so I want my site's content to always be centered regardless of screensize.

How do I do this please?
Thank you soooo much!

depends on your layout.
if you are using absolute positioning, then it wont work well as it is, well, being absolute positioned...

pb&j is right, if you had used tables and relative positioning it would work, but not with absolutely positioned divs. Sorry, but it will make your site look very bad.