I've added a couple of forum skins which should appeal to most folks here. I have attempted to re-create our old one but its simply impossible with the way Vbulletin 4 is setup. We can no longer use images in place of certain colors, so that removes a lot of what made the old skin unique. I have a good white skin, a nice "desert" style darker skin, and a black skin currently installed. You can change these at the very bottom left of every page on the forum or your user CP. I'm still looking for a good black/dark one that matches the old site as close as possible. If anyone finds one thats compatible with VB4, link it here and I'll consider installing it.
I'm currently using Bitten Fruid Fluid, which is a very nice white skin. So if you had gotten used to using our old white one, that'll probably be your go-to skin.
Edit: I just added the "lightweight" skin, which will be used for mobile devices and such. It should auto detect and apply that when you browse the boards. If not, its always selectable as your skin manually.