Keep reading this post for a detailed write up.
redsn0w is an easy to use, multi-platform, multi-device jailbreaking and unlocking tool for the iPhone 2G (original iPhone), the iPhone 3G (but not the 3GS) and also the iPod touch (first and second generation). Currently it is available for Windows and Mac OS X (there are some issues using redsn0w with OS X PPC, please use an Intel Mac until we have this problem resolved).
REDSN0W PROVIDES SIMILAR FUNCTIONALITY TO QUICKPWN.
If you want to build custom firmware files with more flexibility it is suggested that you use ‘PwnageTool’ on Mac OS X.
To use redsn0w simply upgrade the device in iTunes to firmware version 3.0 and run redsn0w to activate and jailbreak the device (and if you are using an original iPhone 2G, it will unlock it too!)
SHA1 SUMS
DOWNLOAD
CLEAN FIRMWARES
Thanks for the video
helped alot