You should register to the site before registering to the event.

User account

Spaces are allowed; punctuation is not allowed except for periods, hyphens, and underscores.
A valid e-mail address. All e-mails from the system will be sent to this address. The e-mail address is not made public and will only be used if you wish to receive a new password or wish to receive certain news or notifications by e-mail.
Please choose a password for your account; it must be between 6 and 30 characters.
(verify using audio)
Type the characters you see in the picture above; if you can't read them, submit the form and a new image will be generated. Not case sensitive.