Paul,
Dallas County Probation has been a big and successful user of the T4C program. Both of my contacts from that agency have moved on to different jobs in different states, so I can not give you a current lead on whom to contact, but, I am sure if you call their offices in Dallas someone can direct you to the correct individual. I do know that Tarrant County Probation has also used the program. Someone from there, Cynthia Williams, cwilliams@tarrantcounty.com, may be able to tell you what is going on. She is qualified to train. I know she was tied in with the Dallas group doing some training around the state at one time-- I believe. At one point, the CJAD unit out of Austin was equipped to train staff and I believe were doing so. My primary contact with that group has also moved on, but, you may want to try them?
Hope this gives you some leads. Sorry, I could not be more specific.
Steve Swisher