Vinny,
Same problem with a buddy of mine, but with withdrawing LTC from Vircurex. Sent 1 LTC, no problem. 25 minutes later he sent a larger transfer out of Vircurex 500LTC and no Transaction ID appeared and it never hit the blockchain. Checked several explorers and the transaction is not there.
If I were to play a guess, the 'hot' wallet for the exchange might have been dry and the admin might need to move LTC from the 'cold' offline wallet.
My friend still awaits a reply from the admin.
Please update if any of y'all get an update from Vircurex administrators.