Help me to unlock my iphone plz

[vietkool]

I got a iphone came with version 1.1.2 software. I follow 1 instruction here to downgrade to 1.1.1 and sucessfully jailbreak the fone. I have try to use Anysim to unlock but it doesn't work with my iphone. I try to downgrade to version 1.0.2 and when I browse to a file 1.0.2 for restoring, the itune keep popon msg box like " searching for iphone" and stay there for hrs.
Please any1 help me to unlock the fone.
for now I am still at 1.1.1 with an addons sofware : Installers and AnySim

[Angello]

You cannot unlock 1.1.2 OTB with a software.
If you have 1.1.1 at the moment read this
hope you find some info over there

regards