We are working on putting a new motherboard with Vista Premium. It is an older Acer pc and we are changing mobos out. Now we don't seem to have the original install disk which was probably a restore cd so what do we need to do to keep all data and programs original? Buy a Vista Premium disk or would any disk work with that pc COA. Myself I have Ultimate but don't want to use it unless that would work as an upgrade.

thanks