If you forgot your password, simply start the application and the login interface will be shown instead. From that point, click on Login/Pass and change your password. Assign a new password and then go back to the login window. Enter the username and the new password then you'll be able to log-in into the application.
For additional information, download the user guide in PDF format: http://www.veeder.com/gold/download.cfm?doc_id=1466