When you've registered you'll receive a confirmation link to the email address you used. Once clicked, the web site administrator will be sent notice of your registration and can then approve it for you. Nothing will happen until you click the emailed link so, if you don't get it, check your junk folder before sending an email to firstname.lastname@example.org
A word about user names and passwords.
Please use your real first and last name when registering. Your username is your choice. Your password needs to be at least eight characters and contain a capital letter, a lowercase letter, a number and a symbol such as !$^? and so on. Underscore ( _ ) fails sometimes.