If the scripts on the page had bad code in them or were not complete I would not be able to get the positive result that I did, so I'm thinking that the problem might have some other factors that have not been exposed yet. Reproducing the issue is always the first step in trying to troubleshoot a problem like this.
I was going to give the detail you asked for, but before doing so, gave the webpage another try. I, like you, managed on this occasion to login and fill out all the detail requested. I was also in a position to verify my email address on the site.
I presume that Rick has been working on the site and has now rectified any problems with it!! Hopefully.
But if there is still a problem at his end, I'm operating on Firefox 3.6.6 and XP Pro SP3.
Hope this helps!