I already said that the driver are installed succesfully, but when I connect the phone flashtool don't recognize it.
Since no one give me a suggestion I came back to win7 to "recover" the phone. The question is this (ignore the previous since no one answered and I decided my self):
"BTW I tried many JB and I found that the best one is this --> http://forum.xda-developers.com/show....php?t=2484443
but the GPS and Auto Brightness is not working, how can I report that to the developer, in the development thread ? "