I have only Guide 7 and am awaiting Guide 9. Does anyone know of a way to make this Guide 8 update work with a Guide 7 disk? I have tried but get an error message every time, and Windows XP shuts it down when I try to run Guide 8, any update version. Bill himself told me to try it while waiting for Guide 9, so I'm not trying to cheat. I just can't get it to work.