Scott,
From what I know, you can't load Tyros Registrations in a PSR3000. It won't accept them. First, the sounds are not going to be correct even if you could because the locations in each keyboard are not the same and the styles also would be wrong because of locations as well. I've asked Yamaha about this and there is no conversion software available.
George Kaye
Kaye's Music Scene
Reseda, California