Can advice somebody what happened with iPhone:

I reverzinised iPhone 1.0.2, upgraded and jailbrack and so on (by Dev team procedure) my iPhone, after that version was checked - 1.1.1.
I've tried to install iLang program, but I didn't work, so it was uninstaled,
but after that- iTunes and in Settings - I can see that version of iPhone firmware1.0.2!
Baseband 04.01.13_G. Northing changed - just again advice of iTunes - upgrade to 1.1.1.

Is is just bug in show version number or what?

Thank you in advance