I can set a new setting for the Reminder Advance Days and it keeps it only while the application is open. I set it for 10 days. When I close Birthday Reminder and reopen it, the number of days has returned to 7.
I tried changing the number of days and the time and clicked on the Set Time button. When I closed and reopened the application, it showed the new time but not the new Reminder Advance Days.
I'm using Mac OSX 10.2.4 on a G4, 733 MHz