Lou:
What you reference is quite a complex problem. I know of no program firsthand. However, when you get a chance you may do some research into the Importation Model. This approach recognizes that offenders bring their prejudices/beliefs into our correctional facilities. You may be able to find some material there - especially about the recent development on the types of programs that interest you.
I might also add, that in every facility that I have ever worked, the races tended to segregate themselves. I have never seen any program that has been very successful in countering this tendency. Inmates, like everyone else, tend to be more comfortable around those that share their same experiences, interests, etc. What little success I have seen has tended to occur as a result of religious/faith programs. The institutions that I have worked in have been fairly violent, and the inmates tended to segregate themselves as a safety/survival mechanism. Perhaps the same is occurring in your facility.
Good luck,
Curtis