Click the tab on the top of the message board called

Ugrade to VIP

It's a nominal fee of I think $25 or so and is a one time fee and lasts forever. After that you can pm Anubis to set you up as a VIP member. It is worth it if you plan on staying a while, plan on buying and selling stuff. If you are just here to quickly browse and shop and come by once a month, then, the benefits might be debatable.

There is a VIP sales section and a VIP members section, but most sellers post in both the VIP sales and regular sales section anyways. The VIP members area is used for flaming non members without them knowing. just kidding.