I am so sorry to hear about your dad. do you know if he is at a center of excellence? is there anyway he can move in with you so you can help out? at his age he really needs someone with him I would think especially if they do the vidaza. how are his counts? it is good the dr is speaking with you about it! good to have communication with the dr.
here is a good site to get lots of info. they will send you a booklet on mds. I got so much out of it.
http://www.mds-foundation.org/patient-handbooks/