How do I get iOS 4.3 on my iPod touch 4th generation?
First you need to go online to the website osxdaily.com/2011/05/06/redsn0w-0-9-6rc15-download, and then click on the option "Download Now" which corresponds to your operating system. Once done save the file to your desktop. Find more details on http://www.ehow.com/how_12022575_jailbreak-ipod-touch-ios4.html.
Go on iTunes click iPod and click search for updates and it will say update found do you want to update and well go from there
(just saying) iOs 5 is better
do you want to jailbreak it?