I have found 'Learning to Speak Alzheimers' by Joanne Koenig-Coste very helpful. I have lent it to a friend, so can't check whether it outlines the different stages clearly (although I seem to remember it had a kind of 'tick-list'), but bear in mind that the course of the illness or condition varies from one person to another anyway.
I was very touched by the website which was mentioned on TP only a few days ago: www.bigtreemurphy.com.
Good luck! Carmen
It is correct that no two cases are alike,I don't think there is a set pattern of progresion.
I to thought how good the site mentioned, www.bigtreemurphy.com.was one of the best I have seen
All the best