I am so close to getting this to work.
I have uploaded the downloadable product and specified the download directory.
The shipping method goes through, a "free method" based on zero weight.
Paypal is configured for my IPN page.
When a transaction is made, the payment goes through and confirmation emails
are sent.
The transaction is confirmed, and "confirmed" is set for the state to send
purchaser a download link.
But no link is sent!
What could be wrong?