huh? I got news for you... even if you were running 32bit vista for example, you may have to still install other drivers to get your drives or nic to show up. That is why the folder with the drivers gets created for the drivers during backups. You have to put that one a usb key or save to external drive. Why do you think there are so many posts of nic cards not showing up during restore or failure to detect disk from restore cd. If you are messing with whs, then you need to have at least the ability to install your own OS.
I for one would like would like 64bit myself. But since it currently works with x64 7 rtm, it is low on the totem poll.