Normally your 120 BTC didn't move out of mtgox. As it might have an error before sending to an incompatible address.
I believe that some other coin addresses will flag a non supported BTC address and return them, however Terracoin does not have this in place. it is possible to transfer BTC into TRC, and it is also possible to ge them out of there. But btc-e.com are refusing to help.