1.1.1 Jailbreak Problems HELP!

so i had an unlocked 1.1.2 and tried to upgrade to 1.1.3 but i downloaded the wrong file which was Official 1.1.3 upgrade. So i downgraded to 1.1.1 and then did all the necessary steps to get to 1.1.2. Then i unlocked on 1.1.2 using 1.2.u or something like that. It seemed everything worked fine until i realized that i could not receive or send calls. Everything else on the phone worked fine no error message or anything just the calling problem. So i downgraded again to 1.1.1 but now the *#307# does not work. How can i get back to a unlocked 1.1.2? thanks

well it could be this:

you might have the 1.1.3 baseband firmware. Anysim 1.2 is for the 1.1.2 baseband
If this is the case, restore to 1.1.1 in DFU mode, get it to jailbreak, and install the baseband downgrade from the i.unlock.no source. Then you can install oktoprep-update to 1.1.2, and run anysim 1.2 in airplane mode.

is there a guide to doing this? as you can tell i'm not that well informed at all this unlocking stuff. thanks a lot though.