The forum looks really nice ! I like the clean, tidy organization. Grats !!
Sorry you are getting spammed from the spam-bots. Depending on how big a problem for you, you might look into using a "bot foil pw" -- it's available on the phpbb3 forum. I use it on my phpbb3 forums and that stops the bots registering because there is an extra blank that has to be filled in with something common they can't predict.