Step-by-step Tutorial: How to Untether Jailbreak iOS 4.3.3 Using RedSn0w 0.9.6 rc16 (Windows / Mac OS)
Here are step-by-step tutorials how to jailbreak and unlock iOS 4.3.3 firmware with RedSn0w 0.9.6 rc16 for Windows and Mac OS X.
RedSn0w 0.9.6 rc16 (Windows)
RedSn0w 0.9.6 rc16 (Mac OS)