How can i change layout settings on fundraising

Hello,

Fundraising is based on a blog layout which means that i have a sidebar. I don't won't a side bar at all. How can I change that?
Thanks a lot.

Lionel
PS : Here is a link to see my fundraiser
http://www.imaginarts.tv/enterremartiale/soutenir/les-disciples-montagne-sacree-en-terre-martiale/