New banner isnt fitting properly

[buddhamus]

Hi all,

I just recently put a full size banner on my site, but the only thing is behind the banner is the bg.gif image...and I cannot expand or resize the image so the top of the image grey bit goes away. You can see it here, it is all around the image!

Site - http://xplosiv-gamer.com

It's all around the Image as you can see clearly in the above link!

Also, i want to resize the content bit....i had to shorten the width of the site from 975px to 960, so i could get that shadow look on the sides. I would like resize the content on the left and right side of the site so it is equal and so it doesnt look like it's been cut off on the side of the sites.

Any help would be much appreciated! :D