Fidelity is a very updated site. As the opening bids get set they are sent to fidelity pretty much real time. Many times the opening bids do not get set until the day of the auction and in some cases not until after the auction begins. Actually those are the best opportunities because many people will hold off researching properties without an opening bid.
So when the trustee gets the opening bid they put it on fidelity pretty darn quick. If fidelity doesnt have it up yet it is mostly because it has not been set yet.
So to anyone reading, you can set up a free account at http://www.fidelityasap.com and get very realtime auction information including postponements and all that fun stuff you see being posted.