My thoughts on this: It's not unusual for vehicles to be listed on multiple sites, AND not removed when sold through a different site. I'm sure the sellers use the tactic of "No, that one is sold, but we have this one that you might be interested in" when they get an inquiry on a specific vehicle.
Call the one that has your truck (color and serial number) and ask about it. And ask if they have the title for it if they say they do have it for sale. Lots of these sites are basically brokers and don't have actual possession of the vehicles (or title) listed.
Just because it's listed there doesn't mean that they have it for sale.
