I would agree, speak with your agent.
One of the local MLS's is in the process of submitting all their active listings to the originating site for this property. Most likely this is why the home appears on Trulia.
You offered on a short sale and you haven't heard any update yet? Most short sales average 45-60 days for approval, but sometimes longer.
Consult your agent to talk with the listing agent to find out an update. Generally, not getting an update (if that's the case) for that long doesn't bode well.