Hey up

I recently upgraded to the 4.0 firmware on the assumption that i would (with some work) be able to fully jailbreak it...and live happily ever after. However I've been struggling BIG time. Im using Itunes 9.2 and i keep getting error after error. Does anyone know of an alternative way to install firmware (i.e Not Itunes) or can someone upload (or email) their jailbroken firmware to try?

Thanks in advance