they look ok to me, iv done the same to my forum to what you have done to yours, have a click through to mine and see http://www.goldtrailers.com/forum/, i believe this is a good spot for many clicks
The placement looks fine, you can try removing the ad that gets the lowest number of clicks per day...that could help.....besides that just ride it out...
Gold Trailers is about, film trailers you can watch them wright about them ect a new layout will be done shortly for it