new here + CSS/DIV question

[Mister Crowley]

First off, I'm new to the forums. Great board, guys! Now, onto my question:

I've read that using CSS/DIVs makes your site more readily available. It will be seen on most browsers correctly, rather than the use of tables. Anyway, I did all my margins using percents (so it will look right on all resolutions). But to my dismay, my header graphic gets all messed up since it's an absolute width, rather than the relative percents. Any ideas on what I should do? All help is needed/appreciated.

[vgarcia]

Show some source code !*
* In properly formatted blocks, of course