Thank you Longshot for finding that for me. If you have at this thread I posted on the USAAF Forum you can see that 44-77551 flew with the 29th Troop Carrier Squadron 313th Troop Carrier Group on Operation Varsity.
http://forum.armyairforces.com/313thTCG-Operation-Varsity-and-the-C46-Commando-m218516.aspx