Affiliates & marketPress integration

Hello,

I'm trying to integrate the Affiliates & MarketPress plugins together. How can I do that precicely ?
And what are the plans to let those 2 plugins integrate. I would like to create a few products and services on my website and develop an affiliate network around theses products, so I can sell them and give money back to my affiliates.
One other question I have related to the affiliate plugin : when an affiliate sends a user to my website, will the user be tracked even if he reads multiple pages (i'd expect that :wink:, and then come back to a product and by it ? I suppose you use cookies to do that, so another question would be how long does theses cookies last ?

Thanks a lot !