Joomla 1.5 How to Change the Adminstrator Password November 4, 2011 | By Regaz | Filed in: Uncategorized. Login in the Administrator Back-end Site > User Manager Click on the Administrator link Insert it in the Field New Password Save Tags: Blog, How-to, Joomla « Mac OS X How to Find USB Device Node with Command on Terminal Joomla 1.5 Prevent/Disable New User Registration »