Hi. I brought this in singapore a few months ago for a birthday present for my son. Thought I'd open it up today and get it jailbroken. However it is running ios 5.1 and the Absinthe programs I can get support 5.1.1 or 5.0 or 5.0.1.

How can I either upgrade to 5.1.1 to Jailbreak, or jailbreak the current 5.1 version?