Did you claim your loss in the liquidation process? If so we should be able to find you on the list of creditors. Soon including the exact amount.
Yes, I've sent the claim a while ago.
Best to take down the side and stop all trades asap, or freeze all trades or whatever - have a message up with link to the forum, email all customers and see if people are want Bitmarket to open again in a few days or weeks.
There is a message on the site - once you log in it really stands out and points to this forums thread. I've also halted all trading, so no one will sell Bitcoins he can't withdraw. Trying to make an offer will also take you to this thread.