Affiliate Marketing Secrets

an anyone find me a suitable affiliate software?
Must have the following:
1. at least 3 tiers
2. Paid per sale (fixed value or % set by me) Each tier must have different PPS values.
3. only basic functions for affiliates ie. text referral link and ability to see how many successful sales they have referred.
4. Mass payment option for paypal.
Affiliates would be marketing membership for the affiliate network, and receive cuts of the membership fee depending on the tier of the new member.