Help Help Help....This is driving me crazy....i have an iphone 3gs, Baseband 05.15.04 firmware 4.2.1 and i am trying to JB with pwnage 4.1.2 using the following IPSW....iPhone2,1_4.2.1_8C148a_Restore.ipsw
pwnage says in expert mode: WRONG FIRMWARE BUNDLE SELECTED
I have read through many threads and forums on people with the same problem but their answers are not fixing my problem.....i have tried older ipsw's and custom ones also the latest downloaded from itunes but always the same problem...
I tried Redsn0w and i had a similar problem it does not recognise the IPSW's
Please help!!!

pwnage says in expert mode: WRONG FIRMWARE BUNDLE SELECTED
I have read through many threads and forums on people with the same problem but their answers are not fixing my problem.....i have tried older ipsw's and custom ones also the latest downloaded from itunes but always the same problem...
I tried Redsn0w and i had a similar problem it does not recognise the IPSW's
Please help!!!