It may be that there is another account registered for your e-mail address. Please use "Forgot password" link at login page and password for that account will be sent to your e-mail address. Then you will be able to login and delete that account and register the new one.
By some reasons beyond our control, your email service provider may block confirmation message or unable to deliver it. Try using different email address. For example if you have no success with hotmail, try entering your gmail address.