Default Unable to Sim-Unlock - Help! :P


I tried rooting this phone and suceed.

When I tried to sim-unlock it, I failed.

I tried with entering code *#197********* and then going in Simulation and stuff like that, but I'm missing some parts of menus there
and I cant finish it.
I'm missing this in my menu: Press [4] NW LOCK NV DATA INITIALLIZ

Is there any other way?

Bought in T-mobile - USA.

I'm currently in Croatia, and I'm not able to call them to give me unlock code, I tried by putting Croatian T-mobile sim card, but it's locked on that one.