Affiliate software suggestions needed! Thanks!

Hey everyone,

I'm trying to find an affiliate software for a site I'm building. I'm selling services to be delivered over the phone, their will also be a waiting list that clients will pay to be put one and affiliates should be able to get a cut off of this as well. I am only interested in free software/plugins (wordpress) for right now, I wont mind upgrading to a paid software later on (RAP maybe) but for now I only need suggestions for free ones.

Any and all suggestions are welcomed as this is somewhat time sensitive.

Thanks a ton,
-RR

IdevAffiliate is $100 and I'm pretty sure I made it clear I'm not looking to spend anything on this yet. If its shared somewhere than a link would be nice otherwise thanks for your time and hopefully someone else can actually read the OP and leave a better suggestion, Thanks though...