CCRoyalsenders complete how-to:
And another from GuitarDojo, one of the FAS mods and beta testers. This is really basic - it's more of how to use Audacity (or any media player) to send the raw files to your Axe-II.
[VIDEO]http://www.youtube.com/watch?v=_pAXRTlOt1s]Axe FX II Tone Matching using USB audio and guitar master (isolated) tracks - YouTube[/VIDEO]
Can't wait to get mine...