You are in luck. There is a untethered jailbreak solution for your device.
The tools are listed below.
- How to Jailbreak 4.3-4.3.3 with JailbreakMe 3.0 (Windows) (Mac)
- How to Jailbreak 4.3.3 with Redsn0w 0.9.6rc16 (Windows) (Mac)
- How to Jailbreak iOS 4.3.3 with Pwnage Tool 4.3.3.1 (Mac)* preserves baseband
- How to Jailbreak iOS 4.3.3 with Pwnage Tool 4.3.3 (Mac)* preserves baseband
- How to Jailbreak iOS 4.3.3 & 4.2.8 with Sn0wbreeze 2.7.2 (Windows)* preserves baseband
- How to Jailbreak iOS 4.3.3 with Redsn0w 0.9.6rc15 (Windows) (Mac)