Whats the error? I just tried right now and it worked fine for me.
Did you have your browser security setting set really high?
To add Crysta, you log in to SE Account https://secure.square-enix.com/account/
Then goto "Add Crysta" (on the left menu sidebar)
Pick the amount of Crysta
Then select next, and use "UltimatePay"
It will load Ultimate Pay thingy, and you have the option to pay with Paypal.
To change your payment option
Click on "Select Service"
Then click "Option List" in the FFXIV Box
Click "Update" next to Payment Method.
The next screen will have the option to use Crysta.
If you don't get that then I am not sure what you are doing wrong >.>;;; I just double checked and this is step by step confirmed. Edited, Oct 15th 2010 3:36pm by JamesX
FFXIV: Karamethien Seraphus
Still a Seraph Samurai Wanna Be
Fishing AF - Complete, SAM AF - Complete, RNG Af - Complete, RDM AF - 1/6