If I google "mp3 downloads" or "buy mp3" or anything like that, i don't see beatport, juno (which is not flash) or your gospel music site.
As for the results. This small site has only one page and...

A custom built flash solution will certainly cost more than 100 bucks, but from what I gather from the original thread, he's looking for a simple and cheap solution to get his stuff going.
Not my...

Hi,
it's possible now with cs3 to make a cart for digital downloads in flash using the paypal api. it's not as difficult as you think.

There's the FEX cart, with addons for digital delivery....