I need some Blogger CSS help...Anyone?

I am trying to figure out how to make the white background in my blog show up for the entire length of the page. In some instances where posts have ther own page the white box stops short leaving all my links running out of the box and down the page.
If you go to one of my blog entry pages you will see what I mean. Anybody know how to fix this? It's really buggin me and I can't sleep at night.

Thanks,
Chongolio