How do you get the spare tire down on a 2001 Toyota Sienna?

We encountered this piece of "fun" when a tire blew in a road trip. It took us, 4 other people and two State Troopers (we got stuck on a freeway where it says No Stopping) over an HOUR to find this. Used vehicle, no manual.

So - behind the front seats, move the 2nd row of seats back, roll up the carpeting. Under there is a small depression with a lugnut. The wheel spanner fits this and you crack the spare down ... check for progress and obstructions while you lower the wheel.