We are re-posting this project as we'd like to resolve it with a different approach. We are integrating a brand new Joomla site (1.5) (Photo and Video Gallery, Event Calendar, etc, etc) with other programs that stood alone (classified ads: GeoClassifieds Enterprise Version [url removed, login to view], forum: phpBB) and a separate website, each of these has its own database. Now all will be part of the same community site.
We want our users to be able to log into any part of our website, and have access to all the other parts without having to log in again.
We are looking for someone with programming experience, familiar with Joomla and MySQL who can integrate these different components through a single sign on solution. Will provide more info as necessary.