Sorry for the delay................ your out of luck im afraid, thats the latest software which cannot be unlocked by yourself........... yet.

There is another way to do it but i would not recommend you try this other way because it sounds like your not clued up enough to do it, i could tell you but it helps alot if you have at least abit of knowledge first.

Your other option(and probably the best thing to do) would be to get orange to unlock it for you(if they do it?) if they do do it then great, you may have to pay 10-20 quid but if they unlock its much easier for you and it means it will stay unlocked forever, even if you update software etc