State of the Art is Intensity Modulated Radiation Therapy. Don't worry about Tomo, Cyberknife or Protons. They are investigational and there is NO evidence they are better and I doubt they will ever be proven "better" or with fewer side effects but some people will mislead you by saying so. All of them are putting the cart before the horse with regards to results and in some cases even ethics.
They should treat your LN's and the prostate bed and then treat the area of the prostate with a boost.
If you had received the Radiation upfront the current protocol is to add Androgen deprivation therapy for at least two years.(this does not change just because you had surgery) It used to be Lupron but now they have implants that can be used as well that last 6 months to a year.
This should give you close the the cure as doing it upfront would have but with some increase in potential of chronic irritation (not alot but more than before surgery)
The problem with the ADT is you have to be patient because the final answer will not be until you stop the drug after two years.
The ADT will cause Andropausal (like Menopausal) symptoms and you should take Vit, calcium and mineral supplements and watch your blood counts. Occasionally you can get significant anemia. Most people tolerate it fine with few if any problems so don't get too concerned.