Your home comes up on Trulia as SOLD and as a "public record" of the sale. As a public record the information is available to anyone who wants to use it for comparison purposes.
I don't think Trulia can get it off their site, since it is a public record of the sale and that information can be found anywhere.
It's the nature of this newfangled technology (LOL) that once on the internet, almost always out there somewhere.
You realize these photos may be on many more websites than just Trulia. It's all automatic when somebody lists their house for sale.
You could try emailing Trulia customer service, but posting here isn't going to help unfortunately.