Try this www.tesla.com/teslaaccount/edit-design/RNXXXXXXXX and replace X with your number. If it directs you to your account page then you have a VIN assigned. If it takes you to your config then order is not ready yet.My edit button disappeared and I had to reconfirm all my previously entered details. Now my status screen shows waiting to schedule a delivery appointment. The bad news for me is that I may get bumped in line if my delivery date is in late September as I'll be on vacation and won't be able to take delivery.
Also interesting note is that Tesla is still showing I still qualify for the $5000CEV. We'll see how that pans out later on.
Hopefully you can get it soon! I didn't know the performance version qualified for the rebate as it is over $77,000