It looks like we receive your listing information from Windermere in which case you'll need to ensure that they are including the most up-to-date information for your listings in the data feed they send to us. Once they do so the information on Trulia will update automatically.
However, since you are a Trulia Pro customer, you can submit your listing information to us manually, point your listings to your own website and and manage that information yourself. Go to http://www.trulia.com/agent_login/?r=submit_listings/enter/ if you would like to submit your listing information to us manually. Within approximately 36 hours you'll then be able to direct your listings to your own website and we'll automatically use the information you've submitted. Please see the link below for instructions.
Customer Service Representative