Thank you for contacting us about this. Have you received the alerts that have been sent out regarding the answers that have been posted to your question here, or are you not receiving any Trulia alerts? I ask because it seems that you signed up very recently to receive rental alerts, and it's very possible that there haven't been any new homes added to our site since that match your criteria.
Please let us know if you're not receiving any alerts so we can investigate this further. Otherwise, I would wait a few days to see if you receive alerts specifically for new rental properties in your area.