Need to reset Administrator Password

See this Apple note to reset the admin password: http://support.apple.com/kb/HT1274 . You'll need either the original gray-faced OS X disks that came with the mini or an OS X retail black-faced install disk to change it.

If you read all of the Apple note, about half way down there is a section titled "Resetting the original administrator account password" that you need to click on, which says: "Follow these steps to reset a password when there is only one administrator account on the computer, or if the original administrator account needs a password reset." I believe that's what you want to do ....

i bought a used ibook g4 and i don't have the administrator password or any disks. how do i reset the password and create a new administrator?
any help is appreciated greatly! thx!:)

For Tiger (10.4) you can use single user mode to reset your MAC to a new out of the box state that will prompt for password and other settings.

You have to use the Unix commands below. Substitute ADMINACCOUNTNAME as appropriate.

Start in Single User Mode (apple+S at startup)
fsck -yf
mount -uaw /
nicl -raw /var/db/netinfo/local.nidb delete /users/ADMINACCOUNTNAME
rm -r /Users/ADMINACCOUNTNAME
rm -R /Library/Preferences/
rm /var/db/.AppleSetupDone
sync
exit

Follow these steps to reset a password when there is only one administrator account on the computer, or if the original administrator account needs a password reset.

Tutorial: *Reset MAC original administrator account password*
http://www.macpassword.com/reset-mac-original-administrator-account-password.htm l

Good luck.