Ok I've got Vista installed but cannot now access either XP or Kubuntu.

My config is as follows:

Drive 0 (PATA)
- Partition 0 NTFS backup drive
- Partition 1 Linux native
- Partition 2 Linux swap
- Partition 3 Linux native
Drive 1 (PATA)
- Partition 0 NTFS
Drive 2 (SATA)
- Partition 0 NTFS - XP installed here
Drive 3 (SATA)
- Partition 0 NTFX - Vista installed here.

What do I need to do so that I can dual boot at least in to Vista/XP (Not that concerned about Kubuntu)?