I'm curious as to why you want to buy a short sale? They aren't always a great deal, they can take months to complete, and in the end you may not even get the house. The sellers often have neglected the house, and may have lots of maintenance issues.
If you're serious about buying a home, then you shouldn't limit yourself to short sales. Especially now that the market is recovering in most areas, and we're seeing more of a seller's market now. I would interview a couple of local Realtors and pick one to work for you as a Buyer's Agent. They'll be able to walk you through the process.