I have table..then another table for my sliced image inside of that table...and I have a div for navigation under that. Or at least it's supposed to be under it, but it goes under the big table. If I use absolute positioning to position it, it goes to the right too much in an 800x600 resolution.
Any idea how I can fix this?

here's the page that I'm doing this with, if I'm confusing you or if you need to take a look at my coding:
http://silence.faded-rings.net/layout8.html

If you scroll down, you can see the menu...it's supposed to be between the logo and the text.

Thanks for any help.

I'm sorry...that still sounds confusing.
All I need to know is what the best way is to put the div with the menu in it where it needs to be so that it stays there for the most common resolutions.

I think you were right in the first place. Just use absolute positioning and it should stay that way for all resolutions :) .

I there a way I can horizontally center the div?

Add align="center" like such:

<div align="center">

or

<td align="center">

Either one should work. :) Hope that helps!