How do I extend the background in the post summary area?

Ok I'm trying to extend the white background on the post summaries seen here http://liberalscreatingprogress.com/main/

http://awesomescreenshot.com/09737h9r2d

I would also love to know how to make the post titles in these excerpts go to two lines so more of it is readable and users can see what the post is about.

Thanks for any advice/help you can share!

WPMUdev Rocks!

Joe