Help with Dual boot

There are 2 entries listed in the Vista bootloader. I can delete the entry for the previous version [XP Pro] but the ini is in C drive on which I have XP. Vista is on Q drive.
As I understand it I must make a new entry to boot only from Vista.
I really need a step by step guide here. I am 76 and not that aufe' with woking this out.
I installed vista on same computer as XP but different Drive and it automatically gave me the dual update settings. My problem has been ,as with many others it would seem, that when i reboot i loose my "restore" points. If it were not for that I would leave well alone. I am afraid to make my computer unboootable even though i have good ghost image backups.
Please help

Mak 2.0

Staff member