I did make a new thread for this, but since it's being discussed here
--Update from the site--
Acquisition of Registration Code for the Open Beta Test
We have an important announcement to the testers who have participated in FINAL FANTASY XIV Closed Beta Test.
Between 19:00 and 19:50 (PDT) on Sep. 1, 2010, an incorrect notice saying "Participants of closed beta test do not need to obtain new registration code for the open beta test." was being made on FINAL FANTASY XIV Open Beta Test Application Site.
Participants of closed beta test also need to obtain and register dedicated registration code for the open beta test. Please follow the directions listed in the mail "Guide to the FINAL FANTASY XIV Open Beta Test," which was sent to the participants of closed beta test on Aug. 31, 2010, and obtain the registration code from FINAL FANTASY XIV Open Beta Test Application Site.
We apologize for any inconvenience this may have caused.
Awesome, isn't it?