It's great to hear that you are enjoying your Trulia Pro subscription.
Since you are a Trulia Pro subscriber, you can select which site your listings point to. You can do this within the My Listings section of your account which you can access via the link below. Once you're there select the option to 'Edit listing details' and then the option to 'Edit listing source'.
If you don't see the source that you'd like to select for a listing, you'll need to add that source to our site manually via http://www.trulia.com/submit_listings/. Use the method on the left to submit your listings now and you'll be able to manually provide us with the listing information, including the website, that you'd like us to use for the listing in question. And once this information is available in our system, 24 to 36 hours later, you should find that source available on your My Listings page when you attempt to edit the listing.
I hope that's not too confusing. If you have any further questions, please let us know.