Hi Ang2004,
Just to clarify a couple of things, the remote worked to turn the 360 box on and controls the volume on the TV but that's it, you can't do anything else with the 360 box.
Have you tried factory resetting the remote and repairing.
Press and hold the TV and Rewind button for 10 seconds which will factory reset the 360 remote.
After the factory reset, try pressing TV and 0 button for 10 seconds and it should now force pairing.