Ciao,
as you can see in the previous post, to work in Italy you have to get licensed to practice, first. The procedure is online in the site of Italian Health Ministry. There are also telephone numbers which you can call for informations.

You can also see the WCPT site, where you can find infos about the Migration rights for physiotherapists.

In Italy there is the national association which is called AIFI. There isn't obligation to subscribe but you can visit the site http://http://www.aifi.net/

For working here i must say that you must speak italian because people here aren't used to speak other languages. You can use english only if you're going to work with some sport team, the ones at higher level.
For example the physio of Viadana Rugby team (which plays in the top level) is American, and the physio of Italian Fencing team is german...
Another possibility to work in Italy without speaking a lot of italian you can also find in countries close to state borders. In fact in Bolzano, for example, which is a city of the north, next to austria and switzerland, there is the major number of the population that speak german even if they're italian. Here it might be easier to find clinics looking for english speaking physio!
I hope you'll find your way!
Alessia