its probably a long shot but post something on the dfw craigslist about the dog being stolen. Them tree huggin people on craigslist keep track of them things.. weird what tree huggers do for fun..
Don't post about it being stolen, post a thread and say that your looking for a bull dog, and make sure you put a female. The reason that post was deleted was that pets such as dogs are prohibited to sell on there. I know this cause i tried to sell some catahoulas on there two years ago.