Well, it looks like the servers are finally catching up with the stress of having to give out 50,000+ serial numbers all at once. Also, the version available for download from the "My Receipt" or "My Order" section is not the most current version. Skip the update step and download 1.0.1 directly from MacRabbit.
(On a side note: I can't post links? seriously?? I mean, I understand the reason, but a little more warning may have been nice - like while composing the message. I spend a minute or two looking up how to properly format links in BBCode, and when I went to preview... bupkis! Ah, I digress. If it's a matter of stopping spamming before it starts, I can support the decision.)