AZ reworked their fare class descriptions on their website this fall. Economy class tickets are now listed as:
Promo
Easy (Facile)
Comfort (Comodo)
Freedom (Libera)

Elsewhere they post the info that:
Y,B,M, and H class tickets are upgradable with miles (25k one way TransATL)
Y and B fares earn double miles and double qualifier miles

However, there seems to be no way to tell the relation between Promo, Easy, etc. and Y,B, M, etc. I just spoke with a customer service rep, and she agreed that it is impossible to tell from the web site. As a Ulisse, I can book on-line and have 24 hours to cancel or change, so she said I'd have to either book on the phone or book on line and then call them to confirm my fare class. She said that Easy/Facile is upgradable and Comfort/Comodo might be (should be the other way around?)

But, I'd rather get it right the first time (and I want to book on-line for a number of reasons, off topic in this thread).

So- does anyone know the relation between the fare classes and the new class names? There is a link from the Italian AZ site that sounds like it might give this info, but the page won't load:
http://172.31.47.224/choose_your_destination/fares.htm