Anyone familiar with Vdeck?

[Countcussy]

My Aunt teaches yoga, and has managed to set up a website using Vdeck provided by her host. She wants to be able to allow people to purchase yoga mp3 tracks from her site, and pay for them via Paypal. The site works to a point, and she has links to Paypal working, and also some free downloads. What she can`t fathom is how to make a link downloadable, only after it has been paid for.

I have never done any web programming, so i told her i would ask on here.

If anybody can help, it would be appreciated.