Dave de Vos
I also failed to get past registration. I fill in al the required fields, the (quite hard) captchas, check to accept user agreement, submit, but nothing happens (well, I get new captchas, but no error message or email to complete my registration).
It's probably your spam filters. Or, if you use an email filtering service such as SpamArrest, you will never be able to sign up for any site so you might as well give it up.