As I open the forums I am met by a simple yet nice design. I would like to know what's about, but there is no welcome message to tell me, your visitor what to expect in there. Maybe you could install "welcome headers" or another hack like this.
The orange could be tiresome for the eyes, but still it's very pleasant. and the combination with the blue is good.
The logo: good looking. Few adjustments though: decrease shadow size and don't use bevels, they're a thing of the past
I would increase text size a bit too.
Other than that .. looks pretty nice to me. I don't think I saw the skin, I assume it's unique