How do I get the "main table width" option back in vb4?

[gopherhockey]

I used to set my main table width to 880px and my header to 900px. By having the border be the same color as the background I was able to do this with my header image:



Because the image itself has blue around the outside I was able to make it look like parts were hanging out over the outside of the image. (rider, the black menu bar..)

Now with vb4 I seem to have figured out how to set a centered fixed width forum, but have lost the border. Because of that, its making it look like my image is shifted over. Here is how it now appears:



Is there a way I can adjust this so it looks like it used too?