Visit http://home.eunet.no/~pnordahl/ntpasswd/

This is a Linux based password cracker. You can reset the admin password to blank (recommended) and then set it to something you will remember once you're logged in.

Doing this can make you lose access to NFS secure files, but since you can't get into the admin account that's unlikely in your case. May mass things up for your admins at work tho.

As Hug It said, you may want to tread carefully.

Why not just boot to a Knoppix CD and not get yerself into trouble anywho?

JP