Hey, you can try this. I have never tried it , but it is worth a try
I got this online , and saved it I save any trick with win2k
"Recovering from a lost or changed admin password
Did someone change your admin password and now you can't do anything and the perpetrator won't tell you what the new password is? (This is from personal experience.) Well, there are two ways to fix the situation. First, though, make sure you make backups of everything before you try this, just in case. These are radical solutions for a tough situation.
1) Did you keep your root partition/drive as a FAT32/16 area? If you did the solution is easy. Get any Windows9x boot disk and boot up to it, then CD to X:\WINNT\system32\config and delete SAM (no extension), SAM.SAV, and SAM.LOG. The SAM without an extension is actually an exe file. Those three files control the usernames and passwords. Delete them, reboot, and there will be NO admin password to worry about. Recreate users as before and this time keep the admin password to yourself. "