[Zope] Changing superuser password (Quest)

Hi, I installed Zope 2.1.4 on my RedHat 6.1. I wanted to change the password given by the installer. I tried : python zpasswd.py -p=mynewpassword access Everything seems ok. I have new file called access which looks like the older one except for the 'password' part. 1 - Do I need to restart zope in order to have the new password be effective. 2 - Even if I restart zope, i cannot use my new password. However if i replace the new file called access by the old one, i can acces to the zope management screen. What have I done wrong?