I just chatted with Jason at Nissan about why the order info is not yet available under "my account" on the website. He said they are sending the email notifications in batches over the next several days... after getting the notification we'll be able to access the order link.
I was told last week at the Plug-In convention in Raleigh that the batches would be handled in reservation date order - first people to hand over reservation money reserved their place in line ahead of slower people. Just what I was told, but if they are batching them, it makes sense.
Expect it sometime this week...