I don't have the details for you on dual booting with Vista as I have gotten lazy and reverted to using a boot manager. To much hassle when you get to set up different systems on the same machine as much I a tend to (not meant to brag! Just focusing on how lazy I like to be
)
I know there are members here that have the experience to lead you through this, but it might be better to open a new thread with a direct title, like 'need help in dual booting with Vista'
There could be some good threads in the archives, but I can't judge them to be able to point them out to you.
Would be good if you get it fixed and let 'us' know!
Cheers,
Wj