Just to add. I have had a 64 bit computer for over a year and all of your games work including the Laxius Power games.
I thought that older gamers such as Laxius Power would not work and I needed to "run as admin" or use the compatibilty wizard for older games however the games ran right off the bat with no problems.
I have Windows 7 and a 64 bit system and no problems with all Laxius Power,Laxius Force, Millennium and Asguaard games.
Yes the save files are in the same place as Indinera said in the previous post.