nice forum, your traffic is good, but do not put a lot of ads at the up your page, a litte more is batter that a bigger one.
website looks nice but i am turned off my the big video and ad at the top i would definitely change that.
It looks fine but there's just too much white space in the header area and which I think could be utilized for some ads or for the header expansion.
if you want to put ads in your forum, maybe you can change it with links ads/ Link unit (it's not spend a lot of space in your site)