What Is The Best Affiliate Script To Use For...

[magicmojo]

Hi Warriors:

Here's my problem. Can someone recommend an affiliate script for the following situation (Or even if there's a better way of accomplishing my goal):

To build my list, I wrote a free downloadable e-book in a niche market. This is the beginning of the funnel. I do have a few marketers interested in getting the word out to their lists about the e-book, but since it's free, it's not a Clickbank product and there is no commission.

This is what I have proposed to them. If they agreed to forgo the immediate commission, then they will receive a future 70% commission on every purchase (including a subscription) that anyone from their respective list does that downloaded the e-book. Future purchases or subscriptions may well be Clickbank, but here's my problem:

Of course, I want to be completely up front and honest with each marketer. How can I (and they) be sure that the initial names and then all future purchases will be 100% trackable? I believe that I need my own in-house affiliate script that will track the names for each marketer and then all future purchases (even if a Clickbank product?)

What would be the best affiliate script/software to use for this purpose?

Thanks,
Denis