If you are new and want to become a PDC affiliate here is what you need to know and what you need to do: 

Log into your PDC account and do these steps: Click on Promote Products->From Marketplace->Search for the products you want to promote->Click the promote link and then you're given a unique affiliate link. Use this to promote that product. If you click on Create a New Campaign (next tou your affiliate link) you are asked for a name and a description...these informations are important just for you, to remember what the campaign is about. 

Then create banners or write emails, or whatever you want(if you use emails to advertise that product make sure you include the affiliate link inside them, if you advertise through banners/pictures apply the affiliate link on them)....just make sure you use the affiliate l