In version 1.7.5 and later, the Tasks Jr. iCalendar is dynamically generated. To subscribe to it, you just need to enter the URL as follows into your iCalendar compatible program (Apple's iCal, Mozilla Calendar, etc.).

http://www.example.com/tasks/ics.php

Please note that the 'www.example.com/tasks' portion of the URL should be replaced with your own URL.