I am not liking the way this version of WP is handing user registrations. It seems to not have a good CAPTCHA process and we are getting like 15 bot registrations per day. Until I figure out a better registration tool, or WP fixes this hole, I have turned off the ability for users to register themselves. If you need to register for the site or the forum, send me an email through the contact us link. I will create the user account right away.