Welcome dude and goodluck with your site.
Enjoy your stay
Thank you!
Welcome.
What's the site out of interest?
The site is basically an escrow service between 2 parties. One party sets up a trade (X of coin A for Y of coin B) and once both parties agree, they deposit their coins to the site and once both transactions are confirmed, they get the coins they traded. A screenshot of a trade offer is here:
http://i.gfxtub.com/58214c.png