No more Boot Manager


I am new here and hope I do everythinh right :wink:
For weeks now I had Win7 and XP running side by side on the same disk.
As my XP was quite slow, I decided to restore an old Acronis Backup.
This worked fine, but there was no more bootmanager and no more Win7.
So I tried to repair the BCD with my Windows7 Setup CD.
This worked also ok, but when I typed bootrec /RebuildBcd the computer told me there is no other windows on this machine.
So now I have Win7, no bootmanager and no more XP.
How can I go back to bootmanager, Win7 and XP?
Thank you in advance for all answers.