I have asked btce they say they cant transfere them ,Every forum and twitter,Facebook etc has said they must have backed up the addresses before changing them all in july so either btce are theives or are theives .The amount is 30 btc quite substantial are theY worse than mtgox .The forums and facebook are saying the same leave btce they are a scam if they wont transfer.
Why did they changed the addresses in July? its possible the private keys were either compromised or lost.
Have the funds moved from the address? are you comfortable posting the bitcoin address you deposited to here?
I'm sorry to say but in any case you're at the mercy of BTC-e.