3GS 3.1.3 to 4.x Issues

[bigdz68]

Hi everyone,

Spent most of last night trying to use PwnageTool 4.1.2 and once I finally got into DFU mode and tried installing 4.1 custom built by PwnageTool I got error 1600 from iTunes.

My SHSH are on file and Tiny Umbrella lists this:
3.1.3, 4.0, 4.0.1, 4.0.2, 4.1, 4.2.1, 4.3.1

My 3GS is at 3.1.3 with baseband 5.12.01
Originally jailbreaked with Spirit and unlocked via Ultrasn0w
Using a PPC Mac on version 10.5.8 with iTunes 10.2.1

Just trying to get to 4.1 jailbroken and unlocked on a PPC mac
Any other methods that are working and stable? I have done tons of reading and just cant seem to get where I want without contradicting statements.
Any help would be greatly appreciated or even point me in the direction to go whether it be greenpois0n or something else out there. All these years I have dealt with pwnagetool but if I have to learn something new I will.
Thanks everyone
D

Just FYI Pwnagetool 4.3 got it into DFU mode on the first try and SUCCESS!