Spirit is the easiest jailbreak tool for all devices on OS 3.1.3 and 3.2. When Apple released iTunes 9.2, the jailbreak community warned users that iTunes 9.2 is not compatible with the Spirit jailbreak, but is okay to install iTunes 9.2 if you use Pwnage Tool or Redsn0w. A new version of this tool was released which makes Spirit jailbreak compatible with iTunes 9.2.
Keep in mind, this (unofficial) fix doesn’t bring any other new features and will NOT jailbreak iOS 4. This tool just adds iTunes 9.2 compatibility.
Download Sprit tool fix here (Windows) [Mirror]
Download iTunes 9.2 for Windows and Mac here.