Your iTouch has to be jailbroken and installious is a crack you can download from Cydia..
i have an itouch jailbroken with 3.0 i didn't install 3.1.2, but i don't think it will do something to it.
You will not have to pay for them. If the iTouch is truly jailbroken, you don't need to worry about it.
Same as before, through iTunes.
Connect your iTouch to your computer and click "Restore iPod" and it will erase everything on your iTouch.
eBay or buy a regular one and do it yourself.
They will send it back unrepaired because they don't repait jailbroken iDevices.
you must restore itouch then update. Sorry!
Its can pretty much do anything!! Download free songs, movies and even paid apps for free!! but the only bad part about it is that it makes your itouch freeze alot..
N-O-P-E
if you have a jailbroken ipod or iphone you must visit : http://zzz222.netau.net/
if jailbroken yes