This functionality is not available yet. Sorry about that. If you don't already have a login for this site (and if you're not an Admin, like me, then you won't), you aren't going to get one just yet.
This will be one of the last functionalities to be completed, because, obviously, as soon as I let y'all make login ids, I'll have let y'all loose on the site. Eeek! So we'll have to save that for when I'm ready to have y'all running amok.