are we

[desiredfaith]

are we allowed to sell things other then hardware on here?

[RicheemxX]

Traders Rules (Traders' Rules, Tips, & Tools) you might read those. As long as you are in compliance with the rules you should be fine. If you have a more specific question you'll need to PM one of the mods and ask them directly.

Reading the FAQ's might also help. But the first link provides the best most detailed info.