iH8sn0w just released a new update for the sn0wbreeze (V1.6.2), it fixes the YouTube/iBook issues as well as Error to iTunes Restore Errors. You will require the following to carry out the jailbreak : Download Sn0wbreeze V1.6.2 for Windows Download iTunes 9.2 for Windows and Mac Download iOS 4 original Firmwares Download .NET Framework 2.0 [...]
