actually, i don't think scream should have to integrate with anything. for the majority of users only a few percent would actualy take advantage of that.
my test calender, so far it only shows one birtday per month. you can add your birthday in the edit profile, it uses extra3 and extra4 coulmns.
http://www.extremeforums.org/calendar.php?Cat=[:red]--------------
http://extremeforums.org/index
