You can also use the trinity rescue kit.
It is a mandrake based rescue kit for windows (like knoppix, you boot from a cd)
you can find it at: http://www.trinityhome.org/trk/index.html

It has script to help you reset lost passes, anti-virus software(f-prot atm), ntfsundelete.
I have yet to give it it test run but it sure sounds good.