Promote and market my iOS game for 20% of the revenue made.

I have i game for iphone and ipad published in appstore and i need some one to sale and promote the game in return for 20% of the revenue. The game costs $0.99 right now. Link = [login to view URL] NOTE - I will only pay if download was generated. If the game has been downloaded 10 times you will get 20% of that it is so simple. Happy biding