What to do next to open my SIM in Europe

Hello dear friend

I got the Iphone today and thanks on your posts and replies I was able to open UNLOCK Iphone
WHAT I DID?!

with the Downgraded instructions and these 2:
WWW.widgx.org/completeunlockpack.rar
WWW.widgx.org/completeunlockpack2.rar

I was able to unlock my IPHONE

NOW I NEED MY SIM CARD TO WORK
HOW PLEASE

more info:
at a general I have these settings:
Version 1.0.2(1C28)
Modem Firmware 04.01.13_G

What to do next to open my SIM in Europe

PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEE