Not easy with your theme, far to many adverts for me, the theme has a screen.css inside this file you have 24 different span styles to a maximum of 950px.
The theme is set to the maximum width at the moment, and the way it is constructed would mean lots of changes to the screen.css and most of the layout files.
I would say it would be easier to look for a different theme, 950px – 1000px are the ranges that you would want a website to be avoiding scroll bars on smaller screens.
950px to 1000px is not much of a gain and another theme might have wider sidebars,the existing layout is fairly tight.
I would suggest just living with it, or consider loosing some of the adverts, get a theme with a single left sidebar, and a plugin to place ads in the posts and not the sidebars.
HTH
David
Ok, Thank you for your help David. I think I will just live with it like you said at least until I get my own theme
