Very easy fix I'm sure...changing size?

I can't find the file to change the size of the store? I did this with oscommerce but since switching to Zen Cart, I can't find the file where I set the size that the store can be stretched out to. Anybody know where that is? I've been searching for hours to find it.

Ignore this question. I found it.

breakitup:

I can't find the file to change the size of the store? I did this with oscommerce but since switching to Zen Cart, I can't find the file where I set the size that the store can be stretched out to. Anybody know where that is? I've been searching for hours to find it.

Look in your stylesheet.css find the following declaration and adjust the width as necessary.

#mainWrapper