Aggregate websites like Trulia receive data from more than one source. It could be the local MLS..(very unlikely) or Realtor.com (very likely) or Yahoo or Homes or Cribs or AlligatorHotHomes or any number of unknown sources. The exhaustive list of sources from which Trulia accepts data is unknown to me.
Next, one needs to know what priority the aggregate website, Trulia, gives each source. For instance, if Trulia receives data from Realtor.com and the agent's contact information is stripped,(it is always stripped unless real estate agents pay a fee to Realtor.com to RESTORE their identity as authors of the data) but instead the agent comes to Trulia to add their contact data. What happens when your updated images are forwarded via Realtor.com and hits Trulia? Is the manually edited record preserved (since it was manually edited) or will it be overwritten and the agents data is lost again? Now lets say your agent using auto-posting services to place your home on other aggregate websites and those sites feed data to Trulia, does Trulia update the entire record? Just price? Price and images? Links? is the manually edited record protected? What happens when a price change and new primary image is received from Realtor.com? What is the hierarchical update protocol? Realtor.com may provide an update daily, while other aggregate sites update weekly. Will the latter, dated update, overwrite the fresher data?
Now, most importantly, WHO IS RESPONSIBLE FOR THE ACCURACY OF THE DATA? Who do you call? The real estate agent is not responsible for the data that appears on Trulia, it is placed here without agent consent. Many agents do keep a presence on Trulia to look after the concerns regarding their home seller interests. However, you must be aware, there exists thousands of websites with real estate data with mutual exchanges of which real estate agents have no knowledge, have expressed no consent and have no control.
If you want current and reliable information regarding your home, rely on a source where responsibility is obvious, your real estate professional. Let me repeat, real estate agents are not responsible for data appearing on aggregate websites. We do our best to keep data current, intervene as much as possible, but you must understand, one purpose of aggregate websites is to sell services to real estate agents. In the case of Realtor.com, agents must pay them to keep our names associated with the listing. In essense, we must pay to keep the data we created unchanged!
Now, a real estate agent must decide, "Do I let LB get upset when the data for the home is incorrect on Trulia/Zippo/Cribs/TBO/Homes/hotdiggs/ or must I subcribe to every conceivable aggregate website, and review each listing on a 'daily, weekly, monthly' basis to ensure data accuracy?" Do you think that is reasonable?
More that 80% of home buyers do start their process of searching on sites like Trulia. Hopefully, when it's time to make a real estate decision they understand the data which they are consuming is unreliable and turn to their real estate professional for access to the local MLS.
I do hope you are able to get your new images posted.