Can you explain how this works?
Sure!
You visit the site and tell it you want to launder a certain number of bitcoins. You provide that number, along with the bitcoin address to deliver to.
The site generates a fresh new Bitcoin address and presents it to you with instructions to pay your desired amount to it.
You send the requisite number of Bitcoins to that address.
Once that transaction gets 1 confirmation, the site sends the address you provided the same number of Bitcoins, minus the commission.
Make sense?
Im sitting with 69 confirmations and no sign of my coins!? Im concerned.....