You must be login then click join now and go to members account. Fill in blanks. I think this is how it works but not sure. But it is not very well presented and I also do not see renew or Pat Pal.
I got a card in the mail, mine ran out this May 1st, got the card two days before. Should be a date on your Outboarder Magazine by your address that tells you when your membership runs out.