Its back up now, but I would recommend people DO NOT USE this site!  I deposited 50K and placed two orders.  The orders never showed up in the lists, and I can't withdraw the 50K because its currently tied up in unfulfilled orders.

I won't cry "scam!" yet, though.  I think the site is just really buggy.  The dev probably didn't test it enough, or he's developing it live.  Either way its bad, and I wouldn't touch it for a few days, or only trade tiny amounts.

EDIT: Nevermind.  I talked to the dev and the site has been fixed.