HELP! Can't unlock iphone 3g upgraded from unlocked 3.0 fresh 4.0

[jamserver]

Hey guys i've tried everything i can't unlock my 3g. It now has a fresh 4.0.1 install. I've tried most methods but i keep getting errors restoring the custom ipsw. Error 1600 can not be avoided. Mac and pc the same. I've also tried ireb but the screen goes green and says good, i immediately try to restore firmware and still error codes. I'm beat any ideas?

redsn0w keeps telling me unrecognized ipsw which makes no sense at all

[Simon]

Does the firmware you are pointing to redsnow have a white puzzle cube icon with a music note on it?

[jamserver]

yea i've tried it on my desktop and mac. have pointed it towards 4.0.1 and alos 4.0. Does the itunes version matter?

[Simon]

You should have the latest itunes. What version of redsn0w are you using?

[jamserver]

turned out to be due to the fact that i was using an older version of redsnow...51b instead of 55. Only itunes 9.2 would work for me

go lakers by the way lol

[Simon]

lol thx