I can confirm have added notify board support for downloads pro in the latest update.
Sample notify topic sent from a download that is in a download category with auto posting to a board show below
A new topic, 'my download test', has been made on a board you are watching.
You can see it athttp://www.demosite.com/index.php?topic=19.new#new
More topics may be posted, but you won't receive more email notifications until you return to the board and read some of them.
Unsubscribe to new topics from this board by using this link:http://www.demosite.com/index.php?action=notifyboard;board=2.0