Currently Being ModeratedOct 25, 2012 10:20 AM (in response to sytze-)
XP is not supported by Mountain Lion. There are no XP drivers.
Don't use Bootcamp. Just use Parallels to install XP.
Currently Being ModeratedOct 26, 2012 8:16 AM (in response to BobTheFisherman)
Thanks for the advice. It succeeded.
The steps I made was to make a disk copy of my original Windows XP disk using Disk Utilty. Then I renamed the disk copy into .iso. I copied the ISO file to my usb flash drive.
Than I started Parallels 7, created a new VM, selected the correct drive to install from (the usb flash drive) and volia, it worked.