I am not completely sure but I think you have to have cruised with Royal Caribbean at least once before you can join. That's what I was told when I asked the same question. We're sailing on the 23rd August to Cork so I presume we will be able to join after our return. If I am wrong I'm sure someone will correct me. Gail .
Yes, that is correct, you get one point for a cruise and another for being in a suite.
You join after your first cruise. If you go to the Loyalty ambassadors office on deck 8 they can give you the form to complete.