How Do I have all these Databases pull users from one Loc

[iGuest 3]

How Do I have just 1 databse and have my users login to a specific area and not have to re log in to see the calendar / private forums ?Any Help would be apperecatedI am using phpbb from Fantastico for my forums and WebCalendar from Fantastico for the calendarAs I have users who have access to public section of my forums and I also have users who have private access to other areas of my forums but i want to give the private access users access to a calendar as well with out making them re log in and still keep it confidental from the public people