The "review our order" screen has a yellow button to the right which says "Place your order."
So if you didn't hit that, you don't have an order.
Do you see that button on your printout?
But what's strange is that the items aren't in your cart anymore. I've had stuff in my cart for 3 weeks because I'm deciding if I really want them or not. They should disappear.
You see the cart in the upper right corner? Does it have a number in it?