Hi thank you for the hack everything works great so far
I'd like to point a few things........
1 if you delete a thread with a thank you post the thank you talbe doen not get deleted in the db. Can you add the function to remove the db entry if a thread get deleted?
2 ability to bump a post when a user say thank you
3 admin should be able to delete thank you post
4 like other have requested I would like to see a counter of the totla user that said thank you
Apart of that great job!
Mone'