Setting up affiliates, plugin and were do affiliate signup?

Hi Guys,

Just starting using your plugins and been trying various things out. thanks for such a cool collection of usfull plugins and themes.

I have few questions:

Where can I find information on how to make this work. where is the documentation on how to use this.

How do my affiliates signup to become affiliates?
How reliable is the tracking code for the banners, can we add our our variables to it, if so where?

Thanks,

T