Hi, TEBarnhart -
Welcome to Apple's Discussions.
Assuming it is a Multiple Users password, yes, there is a way to get around it - but you will need to obtain a bootable CD in order to do it.
An OS 9 Install CD is ideal, but any CD that will boot the machine (such as a disk utility CD) will do. Your "Lombard", a PowerBook G3 (Bronze Keyboard) model, originally came with OS 8.6; it can use any retail OS 9 Install CD, and does not need a firmware update in order to run OSX.
Boot to the CD. Open the System Folder on the hard drive, go into the Preferences folder and loacte the file named Multi-User Prefs - throw that file away. Empty the Trash, then do a normal restart.
Doing that should clear all Multiple User passwords.
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It is very advisable to acquire an appropriate CD that can be used for booting in emergencies. A good choice, for many reasons, is a retail OS 9.1 Install CD or a retail OS 9.2.1 Install CD.
You can often get retail OS 9 Install CD's at sites like these -
http://store.yahoo.com/hardcoremac/index.html - Apple Reseller
http://www.applerescue.com/
EBay is another possibility.
Regardless of the source, be sure to get a retail OS 9 Install CD - those are white, with a large gold 9 on them; the retail OS 9 Install CD's have a universal installer; model-specific Install CD's do not.