Hi thawk21,
You gonna have to sit down, and read your manual for your Sony receiver, as well set your TV properly (quite simple for that one).
And your xbox 360 does also have to be setup properly.
You have to go into the audio and video setup menus and adjust the parameters accordingly, so the audio and video signals are output with their respective orders.
Just take your time, and proceeds one step at a time, it's worth it.
Cheers,
Bob