Don't be a quitter.

[suityou01]

I can see three separate instances of a "Join" button on that page. Big, orange, buttony things with the words "Join now!" on them in big, white letters. Have another look

No. Not there. I'm on iPad 3 using safari.

[administrator]

No. Not there. I'm on iPad 3 using safari.

Maybe you're already logged in

[suityou01]

Maybe you're already logged in

Nope. Gone to the site just now and the big orangey buttons are now there. All signed up.