How to restore the Windows XP bootloader
For this you will need your Windows XP installation CD. Boot into it now.
You will get to a part where it asks if you want to repair or recover. To do so, press "r".
If prompted, enter your Windows XP administrator password. This will
leave you at at a command line, so type in the following two commands:
Then type
then remove your XP cd. If everything has gone well, you should come to your XP bootloader.