Help with background picture on blog page

[DanTheMan]

Hi Everyone, I'm not sure what I did but this is driving me batty. A few days ago, I had my blog page set up nicely, and now the awesome background picture I had is cut down to about a quarter of its size and I can't figure out how to get the whole picture back up. Any help is greatly appreciated. Here's the link to my blog page.

Dang, I can post the link, the website is charmcityinsurancenetworkdotcom. If you look at the blog page you'll see what I mean.