I just googled as well, and found a couple CL listings for the same girl in Dallas from June / July:
http://dallas.backpage.com/FemaleEsc...tt-20/10596116
http://dallas.backpage.com/FemaleEsc...xx-20/10589454
However, I also saw this listing on CL for dallas that is a different pic, and not a very good one. The pic is very different, but it still is concievable that it is the same girl. (name is Brittany also)
http://dallas.craigslist.org/dal/ads/1874263375.html
Let us know what happens if you do check it out.