Quick Question About Layout Change

I recently added bbpress to my existing site. Everything is working good except the layout is kinda funky. The Sidebar looks stupid. Is there a way to remove this all together from bbpress pages? Or is there a way to adjust the width of bbpress on the bbpress pages?

See here

http://thefitnessking.com/groups/

http://thefitnessking.com/members/

http://thefitnessking.com/activity/