you must try which one work fine on your HD2... one version maybe work fine on my but not work on your HD2...
for italian language, look in ROM description.... for example Pdaimatejam ROM have 3 different vrsion with different languages...
2_HD2 Pdaimatejam Rom Wp7.8 OS.7.10.8862.144 v8.9
0405 CSY Czech Česká republika
0406 DAN Danish Danmark
0408 ELL Greek Ellas
0409 USA English United States
040B FIN Finnish Suomen tasavalta
040C FRA French République française
040E Hungarian Magyar
0410 ITA Italian Repubblica Italiana
0416 PTB Portuguese Brasil
0C0A ESN Spanish España
0809 English United Kingdom
0816 PTG Portugese Portugal
for full functional market you must ask Microsoft for Live activation code for HTC HD7...
try read my install instructions from signature