After dumping my wp-ecommerce plugin and accompanying plugins and replacing them with MarketPress, I was very happy with the result. The MarketPress plugin works like a charm and I'm up and running. However, one of the plugins which is missing is an Affiliate plugin that will work with MarketPress as opposed to the Affiliate plugin for multi-sites that you already have.
I'm looking at having key subject matter experts add our products to their site and pay them a commission for the referral.
Has anyone solved this issue?