Renter in Bellevue,
You can look up houses scheduled to be auctioned at
http://www.propertyshark.com, among other sites. When there, hit Washington, and " look up foreclosure" in the bottom left.
The local auctions are held every Friday @ 10 AM outside the 4th Avenue entrance of the King County courthouse ( or is it the administration bldg?) in downtown Seattle, and also outside of the office building right behind the Factoria Cinemas in Bellevue. If you can attend one, they're fun and educational. Some people use a service called Vestus to assist them with purchasing at the auction. They supposedly know which houses are better values, and can bid in your stead.
Typically, you can't just go to bank to get a loan to buy a house at the auction. You either have to have the cash, or make a deal with a special lender like Eastside funding, which makes higher interest, shorter term loans, and require at least 20% down.
In the house being discussed, the lender didn't really "buy" the house for 447,000 dollars. When it got foreclosed, it temporarily belonged to a company like nwtrustee services, and at the auction, nobody bid higher than that amount so the same lender who was owed all that money took it back, and, as Jillayne said, any secondary liens were wiped out in the process.