I can't log in with either of my email addresses. The first time failed because I waited too long to enter my credit card validation number during payment. The second time failed because I had to back up when I saw that I had two copies of the software in my cart instead of a single one.
Now it seems to be totally hosed. I can't log in ("your account has been blocked or not activated" and I can't register ("that email already exists in our system". No verification link has been sent; I did receive a confirmation email about account creation.