I am not saying that this is or is not true that they were hacked or funds are gone.  However, it is pretty common for exchanges to move funds from your wallet deposit address to offline wallets.  They do this on purpose to prevent losing coins if they get hacked.  Cryptsy does it, Coinbase does it, BTER does it, they all do it.

Again, I am not saying that they for sure weren't hacked, just be aware that there is potentially still hope that all is not lost.  I agree it doesn't look good since they have been down for 2+ days?  But just because your coins were moved to other wallets doesn't necessarily tell the whole story.

Someone please correct me if you think I am wrong on this.

And also, I hope for your sake you turn out to be wrong.  I wish you the best of luck recovering your coins...