SmartFAQ is developed by The SmartFactory (https://www.smartfactory.ca), a division of InBox Solutions (https://www.inboxsolutions.net)
I want to have my registered users be added to an address book to use it as a Contacts page on an intranet. This list should include a phone number/fax number/email/IM handle/job title/office... is there a way to make this?
There is a greater scope for usuer management in the xops 2.2x series, including customisable fileds such as you request here. Otherwise, look for membership modules, address modules, etc in 2.0.x series.
You can easily change passwords in the database in case you lost them. You can even let phpmyadmin convert them into the md5 format in which they are stored.