You really picked a great name for your forum, domain name is great. Favicon is ok, I love pixel art. Template is kinda heavy, especially the background image. But I suppose all gaming forums have heavy templates. One thing I don't like are those PNG icons, your forum would load quite faster if you remove them.

Move the tag cloud to be the last table in the sidebar. Move up the "Recent Topics Added" to be the first one, and also. It would be better if you used the same design for all tables, e.g. All tables in sidebar should have the design of "Recent Topics Added". It would look way better.

Fix your forum title to; "Xtreme Console - Wii, PSP, XBOX 360, PS3 & DS Discussions Forum". Even though it's long, it's better than the current one.

That's all I guess, nothing else left to review.