Guys, check your (MtGox, personal etc.) wallets, there should be a record of the sums sent to CryptoXChange. The address you sent to is the deposit address. Without that proof, you're just helping calculate a total loss, but I don't think you have any claim.
I have an email trail of the transfer to bank account request, I have copies of all real money documentation being sent to them. I dont need a bitcoin address to make a valid claim. It won't matter in any case since they have done a runner, and nobody is getting paid back anything.