This page serves as a refernce to my hack of pinepgp which enables it to work also with gpg instead of only with pgp. If the original authors will mind to include my mods, then I’ll probably dump this page, otherwise it will live on for ever to serve the world and help to enable people to use their pine together with gpg ;v) Here are the scripts. Download them and untar them into /usr/lib/pinepgp. Check out the README file to get your pine configured for use with pinepgp/gpg.
pinepgp for gpg