how to remove the password plz anyone help me
Why do you want to remove the password?
You'll have to use the Windows CD to boot the system with the CD-ROM drive set as the first boot drive and then format the drive and reinstall Windows and your software.
But you can use a boot CD, such as BartPE, to recover files without logging on.
See this page on how to ceate a BartPE boot CD, which you'll have to do on another PC running XP: