Please upgrade to 2.3 here.
The 2.2 and earlier branches are no longer being updated.
No email to users if category is already established
Posted this as a reply to another question about this awesome addon - everything is working except when a category/question is already started, and a new user signs up to the forum and selects to receive email notifications about that category, nothing is sent out. It only seems to work for categories created AFTER a given user signs up. Any possibility of a fix for this, cd? Thanks - it's an awesome addition to Vanilla...