I have a friend whose XP Pro machine crashed and the OS had to be
reinstalled. I have reinstalled Office XP and copied the .pst file. I have
reconnected to her POP3 email account and the test comes back OK, but emails
are not coming through properly.

I have the entire disk on an external disk backup, but don't want the
restore it all, since it includes the corrupted files that led to the crash.
Where in the registry are the profiles stored? I would love to restore just
her Outlook email profile.