Jim,
This is something you could do with
iDevAffiliate without having to integrate it into Vendor Tools. I use iDevAffiliate on
DTO and, if you haven't already, you can
sign up so that the links in your footer to
DTO will give you credit for any sales that you refer to us. I'm sure the same process would work for what you are considering.
If you would like some additional information on this or need help installing/configuring let me know.
Thanks!
Mark