Advanced Prostate Cancer

My father has just been diagnosed with advanced prostate cancer which has unfortunately spread to the bones and lymphs. He is 63 years old, very active and fit. The specialist we saw said there is nothing they can do for him, he is on cyprosterone (unsure of spelling) and gets and injestion once every 3 months, which is the Hormone Therapy. We were told his blood score was over 200, does anyone know what this means as we have not really been given any info as in stages etc. I have contacted a nurse to talk about things, so hopefully we will get a better undersatanding. Is there anyone in a similar position.