Eh. Personally if you are going to try and advertise your forum, I would suggest making an advertising style signature.
Most of the time you do not want to have a signature like that, and have a bunch of text swarming the piece.
It could use some work, considering the font looks really bad in my opinion. There are a lot of flat edges on the text where it should be rounded....and it looks pixelated to me.
Other than that, its an "okay" piece. Stick to advertising style signatures if you are trying to support your website.
Good luck!