When Wells Fargo took the home back, through the foreclosure process / auction, it shows on county records as a sale for the credit bid amount the bank made to recover this property. It has taken them approx 30 days to get the home on the market as an REO (which is about how long it usually takes, and can take as long as 60 - 90 days for some lenders). So the sold, most probably, is the sale of the home to Wells Fargo, who is now the new owner selling the home to someone like you.
Have a great Realtor check the title records to confirm this, I am in So Cal and do not have access to your title records in Contra Costa County. However, after 4.5 years of working almost exclusively with pre-foreclosure and foreclosed properties, I am pretty confident with this answer.
If you like that house, get an agent to put in an offer for you. It has been on the market since 07/01/2008. Banks like to sell quickly. So find out what a reasonable offer would be, make that offer, have your realtor negotiate hard for you and Dare to Dream.
Real Estate Consultant
RE/MAX Palos Verdes Realty
FYI, some sites have an "automatic refresh" and if the agent, rep or clerk hasn't updated status on a particular website, it still shows as active. I've seen that a lot here on Trulia--homes that sold even in 2006 still showing as for sale.
Best way to check if the house is sold or not is to check with a realtor's MLS system and/or contact the listing agent directly.
Sometimes the house gets sold before it hit the different websites. Maybe it was a really nice house at a good price and was on the market for a few days. But, if that was the case it should have a "Pending" instead. If you have any other questions or would like to get listing before they bocome "SOLD", please log onto my website under the HomeGuide and listings can get emailed to you soon as they hit the market and we can go preview them.