If
the box says it is for Premiere and cunningly has a Nagravision card reader, it's nothing to do with Sky UK (or Italia).
You're getting FTA channels btw, not FTV. You need a card for the "V" channels.
Let me also move your post to a thread with information about SkyHD and Multiroom.....
edit: do read above on the links I posted about SkyHD working abroad. It does and should work with a proper HD display (which I assume you have and is driving your urgency for SkyHD)
As an aside, you could also subscribe, I believe, to Preimiere who have the original language on many of their channels.