If you have a compatible emailer, it may have changed, subtly. My Eudora Lite version gained a bit of info under a PGP menu item and a couple of new icons on the new message screen, allowing full encryption or just signing. Here s how to encrypt files and notes so no one can ever read them. This includes you if you did not remember your password. Ummm, for those who have forgotten their password, please create a new set of keys and remember the password this time.
More detailed guides are in the user guide, or online help.
One thing to remember about your keys. They are not magical. They are blocks of text. Text is universal, easy to copy, and easy to share. When the package creates your key pair, you will be prompted to post your keys to a default server.