About the only role I could see for E-junkie in that would be if you directed your Amazon buyers to a page where you have an E-junkie cart button for a free item, so they would add that item to their cart and use our Free Checkout to obtain a download link for the bonus freebies:
http://www.e-junkie.com/ej/free-checkout.htm
However, just using that approach alone, buyers could share the URL of that page with others who could visit it directly to obtain the bonus items without going through an Amazon purchase first. To prevent that, you'd need some custom scripting in your site/page that would ask for their Amazon purchase number and match that up to a record of your completed Amazon sales. We couldn't help you with that, but you might contact the developers in our directory to see if any of them could:
http://www.e-junkie.com/ej/developer-directory.htm
