Arrested in Turin:
Gabriela Avossa
Matteo Grieco
Giorgio Rossetto
Giuseppe Conversano
Jacopo Bindi
Luca Cientanni
Tobia Imperato
Federico Guido
Alessio Del Sordo
Mario Nucera

All in the same prison, the address is:
Carcere Lorusso Cotugno
Via Pianezza 300
10151 Torino
Italy

Arrested in Milan:
Maurizio Ferrari
Niccolò Garufi
Kalisa Lorenzo Minani
Marcelo Damian Jara Marin

All in the same prison, the address is:
Carcere San Vittore
Piazza Filangeri 2
20123 Milano
Italy

Others, in different places:
1) Juan Antonio Sorroche Fernandez
Casa Circondariale
Via Beccaria, 13
Loc. Spini di Gardolo
38014 Gardolo (Trento)
Italy

2) Antonio Ginetti
Casa Circondariale
Via dei Macelli 13
51100 Pistoia
Italy

3) Samuele Gullino
Casa Circondariale Località Quarto Inferiore 266
14030 Asti
Italy

Check out the complete article on my blog for a downloadable PDF file with some basic greetings and phrases in Italian:  http://italycalling.wordpress.com/2012/01/31/you-cant-arrest-the-whole-valley-support-the-no-tav-arrestees/