You can jailbreak your iPad 2 on IOS 4.3.3 through JailbreakMe 3.0 (untethered). Just follow the below steps and you’re done:
Step#1: First of all your iPad 2 needs to be synced via iTunes and completely backed up with all your personal stuff. Next ensure that you have an IOS 4.3.3 running iPad 2.
Step#2: In this step you’ll have to link to the internet by means of either Wi-Fi or 3G and open Safari browser and drive over to: http://jailbreakme.com/
Step#3: Now tap on the Free button and then hit Install. Now pop up a can and some popcorn and relax on your seat until your iPad 2 carries out its jailbreak course!
Once JailbreakMe 3.0 finishes its job, you will have a fully jailbroken iPad 2 on IOS 4.3.3. Enjoy all those cydia jailbreak tweaks and apps!