Affiliate software in E-commerce site (Creload or different)

Hi I need change or installation of affiliate software in my E-commerce site which will have options described bellow: 1) Have the option for the admin to approve the affiliate's information BEFORE affiliates are able to sign-in. Which might just mean not allowing a login/password during sign-up and having a random password generator which would e-mail it to them upon approval. 2) It should have the affiliate setup in a multi-tiered situation. We need to have main account with sub-accounts (could be treated like address book) for each domain they use with tracking for each domain and a TOTAL tracking for the affiliate parent account.) 3) Set up cookie ID for affiliate in case that people go back to that site later.