avoid customer digital dilemma download ebay environment files help internet listings material over page payment paypal posted protected selling server service storing thank-you thru unprotected url

I have a dilemma and maybe you guys can help me. I'm about to place some listings on ebay. I'll be selling some digital material, once the payment is made thru paypal, the customer is then taken to my thank you (download) page where the download takes place. Right now, that page is unprotected, and I am storing the files on my server, How can I use your service and place said page in a protected environment so I can avoid having my page url being posted all over the internet?

We can for sure take care of that :) Please see http://www.e-junkie.com/ej/help.ebay.php