There seems to be some concerns and confusion surrounding Legacy members and the Beta Test sign ups so we'd like to clarify everything a bit more.
Legacy members will be able to participate in the Windows PC beta test from phase 1 without doing anything, regardless of whether or not you applied for the Beta. (Except for extremely rare cases where service accounts or Square Enix accounts were terminated)
Legacy Members & the PS3 Beta Test
Even Legacy members will need to apply to become a PlayStation 3 beta tester. If you would like to participate in the PlayStation 3 Beta Test, we ask that you apply.
When applying, no matter what selection you make on the Beta Test application, your status for the Windows PC version will not be affected. More specifically, feel free to select either "PlayStation 3" or "Windows PC and PlayStation 3." (There is no difference between these options for Legacy members.)
FFXIII (PS3) Members Code
Firstly, you do not need to have an FFXIII Members code to apply for the PS3 Beta Test. If you enter an FFXIII Members code, you will be given priority over those that do not. If you have one, we recommend that you enter it.
Selection for the PS3 version does not affect Windows PC version beta access. You will not lose access to the Windows PC version if you are selected for the PS3 version. It will be possible to play on both platforms with the same ID if selected.
Please also note that the PS3 beta will begin in phase 3, and this is when FFXIII Members code holders and those who wanted to try the PS3 beta in the past will be able to play.
On the "Beta Test Details and Requirements" page we asked that those that had previously entered their code to indicate it, but this has been removed from the English, French and German text as this is the first time the code is able to be entered.
"I don't remember my already registered FFXIII (PS3) Members code!" -- Added Jan. 16
For NA players that registered their FFXIII (PS3) Members code to their Members account, we have created a way for the Members team to retrieve your code. Please follow the instructions in this post.
Beta Test Sign Up Links
North America: http://entry.ffxiv.com/beta/na