An affiliate system for wordpress

I have a website, I want to implement an affiliate program to all my new members who register, something like OTO. My Affiliate program got 3 level. Silver Membership (Affiliate member) - Can refer new member - earn commissions for direct referral for a certain commissions. Earn lifetime of $[login to view URL] commissions per direct referrals for each completed purchase as long as you remains as a Silver Member Gold Membership (Affiliate member)- Can refer new member - earn commissions for direct and 2nd level of new members (2nd tier) where level 1 and level 2 member with different commissions. Earn lifetime of $.xx commissions per direct referrals and $[login to view URL] for 2nd level for each completed Jobs as long as you remains as a Gold Member Platinum Membership (Affiliate member)- Can refer new member - earn commissions for direct, 2nd level of new members (2nd tier) and 3rd level new members (3rd tier)where each with different commissions. Earn lifetime of $.xx commissions per direct referrals, $[login to view URL] for 2nd level for each completed & $[login to view URL] for 3rd level for each completed purchase as long as you remains as a Platinum Member It is something like MLM. The most important part is the affiliate can earn commissions from each level of members they recruited..