What you see on Trulia is just an informational post. Trulia doesn't just list houses that are ON the market, they list homes that were on the market or foreclosures also. So what you are seeing is information on the home because it was listed before. From what I can see the home WAS on the market back in 2008 as a Short Sale and no one purchased it. If you look to the left of the picture on the Trulia link, you will see it states "OFF MARKET".
Checking the Public Records also reveals that the home is still listed under the current owner whose mailing address is listed as the home. So from what I cantell the owner may not live there but he still owns it. If you are interested in the home, maybe I can contact the owner and see if he has any interest in selling it. Other than that, maybe you can go to the home and leave a letter or mail one to see if you can get in touch with the owner.
I hope that helps a little.