I want my own buy and sell marketplace, I need to know which software bitmit uses?

This is what I want:

JDF+TOR or TorBrowser requirement -> TOR HIDDEN SERVICE -> BUYSELLTRADE MARKET -> #1 Anonymous Purchase Possible and #2 Account Creation -> TorChat

Anyways the goal is anonymity and the use of electronic currencies like BTC, NMC, or LTC.

DEFINITELY NO STINKY CHEESE MESSAGE BOARD, or if I do have one it will be an anonymous mailing list.