XP not booting after repairing Vista boot.

XP not booting after repairing Vista boot.
before this vista was not booting while Xp booting fine.
So i use vista boot pro to repair vista.Now vista boots but xp doesn't?

i use laptop which has vista preloaded.It shows both options XP and Vista at starting.when xp selected it sasys boot corrupted.

vista boot pro is not running in vista.
Getting
Fault Module Name: KERNEL32.dll
Error!
Help me!