i downloaded both versions of the software: 5A347 & 5A345. when i click on then they kind of open them with the iTunes but it doesn't do anything else after that. what can i do to actually install it on my iPod Touch? do i have to restore, press some buttons or what? please let me know how to install it i've been here about 4 hrs. let me know how to do it please. or email me: firstname.lastname@example.org thanks for any replies.