If the property on Trulia was "listed" on the site by Realty Trak, then probably not. Realty Trak takes homes that are in pre-forecosure from public records and posts them on Trulia.
Being in pre-foreclosure does not mean the house is listed, is for sale, is going to be sold, or even that it WILL be foreclosed upon. Owners of homes in pre-foreclosure still have option to delay or cancel the foreclosure process.
If you post the link to the property you are speaking about, I can give you a better answer, but my guess is that this house isn't even on the market.