if you have a Realtor working for you, have them get on Trulia start an account (if they don't already have one) and they can add and edit property information as needed! If you are attempting to sell yourself, you should also be able to edit the information through "My Trulia". I agree with Dirk that in this market (and every market since shortly after I began my real estate career in '85) you need the help of a web-savvy Realtor, one that has a commanding presence on this and other sites. With over 90% of all buyers beginning their search on the internet, no one can afford to not be "virtually represented"!!! all the best....
Janeese Jackson, Principal Broker
"your" Real Estate Resource
If you need a web saavy broker than call me and I will help you sell your home!
Thanks and best wishes.
Re/Max Hall of Fame 503-799-8383