hello. i want to install XP Home 32bit, vista ultimate 64bit, and 7 home premium 64bit, on the same hard drive for work purposes. do i do it the same way as if i were to just do xp and vista, by installing xp first, then vista than 7, or does 7 have a different boot loader that would require a different way of installing things? if anyone can tell me how to do this, i would be thankful.