[Zope] Otto's UserDB

Otto, I am having a really hard time changing your User DB class to do what I want. I want be able to enter other information besides: name password confirm domains roles like ssn, phone, email, etc. But if I change your addUsers.dtml class, the changes never appear. I stop zope, compress the db, clear the caches, remove the python compiles files (*.pyc), restart the database, remove and add a new user db, drive 20 miles to work ... nothing seems to work. Is there a better way? Or what am I doing wrong? Regards, Luis.