The birthday year special was available on Saturday when I was looking. However, I booked a non-refundable "hot"'rate that was less. ($133+$133 vs $229 + $59)

Go to this link and enter the country, state, city/area and select the Westin Stonebriar from the list:
http://www.americas.starwoodoffers.com/payyourbirthyear