Have you tried running the virtual XP machine under 7? I have heard several reports that it works fine with Envisage & the DSI's. Can't say for sure about the LPI, it is a bit of a different beast.
CDIP Certified: Nebula, Galaxy, Solar System, Stars & Clusters Imager
CDIP Mentor: Nebulae & Solar System Categories
For information on the Certified DSI Imager Program, see: