I'm sorry to hear your father's pc had advanced. I have not responded, as I suspect is true of many of the others, because I have no experience with this stage of pc. I would just continue trying, as you are, to learn as much as you can.
I am very impressed with Gunner's post! That should give you hope at the very least. For him to have had a psa of 250 in 1989 and be given no hope, and then to turn it around and find other treatments that have worked so well for over 15 years is absolutely remarkable.
Gunner, I hope you continue to post on this forum as your treatment success lends great hope to those on this forum in more advanced stages of pc.
jcook, I hope you can find the answers your looking for. Again, it would be great to pass on any information you learn to those of us that may still need further treatment in the future.
My thoughts and prayers are with you both.