The only thing you can do is go to the very bottom of the page and contact Trulia's help section. Then the contact button and let them know.
It is fustrating to see these spam ads, but a huge tip off is them asking for you to wire money. Red flags should be going off in your head.
Also you can compare the ads against a reputable company website such as Raveis.com for example. There are many. Hope this helps......... more