Just as it states on the listing:
This Approved Short Sale Home is perfect for a home owner or an investor. This home will be auctioned Saturday, October 19 at http://www.Auction.com.
The price displayed is the Starting Bid amount of $20000.00. For more info including Open House dates and to register to bid, visit Auction.com.
The $20,000.00 is only the starting bid, if the short sale has already been approved, there must be a reserve price, meaning that the winning bid will have to at least offer that much for the property (the reserve amount).
The reserve amount considering the values in this neighborhood could be anywhere from $150,000 to $250,000, that of course will vary very much on condition of the property. This is only an estimate of value, the property could be sold for more or less.