I have been using "Read my Roster" for sometime and the guy who started it has a good product with some good features and made an effort to sort out some problems reading my new companies roster from my old one (both AIMS) however it keeps hanging on one destination. Found a new one which I suspect is also by an easyJet guy called
Roster2Outlook - Your roster in Outlook, PDA and/or phone which read my roster with no porblems at all and looks like it too will do the trick.
I have seen another one but forgot to sourse it.