Steps

Record your episode

Go to http://hackerpublicradio.org

Click on "Give Shows"

Click on "Calendar" (the link is not obvious, so use your browser's find functionality to search for the word "Calendar").

Edit: Please use the ⇧Upload⇧ link in the menu bar

Choose a slot

Submit your email address

Click the link in the confirmation email

Create your profile (if new), then fill in the form with title, summary and show notes

Attach your episode and submit (wait for long upload process)

Receive your confirmation email, and enjoy your episode!