[G4] Multi Users in OS 9

[MacTech]

I am having to set up Multiple User accounts on 10 Macintosh computers 
running OS 9.1 and 9.2. We are in need of security measures to prevent 
users from adding non authorized software and changes to the hard drives.

When I initially go into the Multiple User Control Panel, the owner 
account is the name that was entered when the computers were first set 
up. The password that appears automatically (unreadable of course except 
for the number of characters) remains the same no matter how many times 
I try to change it. The Owner name is changed successfully by changing 
the name in the File Sharing dialogue box. However, changing  the 
password in the File Sharing dialogue box and restarting does not change 
the default password in the Multiple User Control Panel.

I have also thrown away all preferences related to Multiple Users and 
there was no change. I again went back to the Multiple User Control 
Panel and put a new password. Then I closed the Multiple User control 
panel. Went back into it and opened the the Owners options, the the 
password had reverted back to the original number of characters 
appearing in the dialogue box before the change. I also tried throwing 
away the PPC registration database preferences and the PowerReg Prefs.

Can anyone tell me how to successfully change the owner password so we 
can administer these computers?

Thanks
MacTech