Thanks, I installed the file you sent.
This new Download facility is slightly hidden, though is good if users find it. However both people I sampled did not click on the product details for the download facility: instead they clicked "Add to cart" from the category page, which does not work.
I renamed the product to give instructions, to give a chance that users click on the product instead of clicking "Add to cart". But "Add to Cart" still does not work, it sill sends a "confirmed order email" stating:
"Your order will be processed as soon as we receive your payment" for free product.