it will stay on trulia, just say "sold" forever. trulia pulls from property records, not just from MLS systems.
if you want the pictures removed, the most effective way is to ask the listing agent to manually remove them from the MLS and the site. you can also 'claim' the property and make changes, or contact trulia customer support and request they take care of removing details. trulia does not monitor this forum, so posting here won't get you anywhere.