I've tried Nat Pose but found that it messed up the Michael figure textures. In some ways, if you don't mind Bryce assigning colours instead of textures, the demo seems to work more smoothly than the full program. i am going to try Susanna soon so I will keep you posted. (P.S. You can make great trees in Bryce 5 by making the trunks transparent and importing or making your own.)