Yeah I had read a couple people had issues. I waited 24 hours and no change so I just ordered it again and it went through.That happen to me when I ordered mine, so I killed the browser. But I got a order comfirmation Email from TiVo and it showed up under my order history along with a pending charge on my credit card when I checked four hours later.
I would feel uneasy about not getting a order confirmation number. Since you ordered last night (after hours ?) your order confirmation may come later after a human looks at it.