Decent phpbb referral mod

Python

Ive search phpbbhacks.com for one and i cant find it.

Im looking for a referal system like the one in vbulletin, where when a user signs up they can enter a refferal username then a credit will be added to that user...

i found one mod but when i tried it it was simply rubbish...

pfgannon

i was looking for one a while back for granturismoplanet
no luck here either