Ah yea, following that link works, but clicking "Sign up" on the front page gives me "Sorry: Your invite code is not valid". Also, your signup form gives me a

Ah yea, following that link works, but clicking "Sign up" on the front page gives me "Sorry: Your invite code is not valid". Also, your signup form gives me a headache. I'd recommend the standard flow down the page, or splitting it up on different pages.