If you have installed it and have the proper registration and password codes, all you have to do is run it just like a program when you boot up in 9.2. I hope there isn't a compatibility issue with the program since the virtual pc version you have is a bit old. I have version 3 and it's buggy on it's own. Just double click on the virtual pc program and it should work.
Let me know if this helps.
Cheers