U can not install them!
Yes, that iTouch might not be compatible with all your apps.
Yes, its an app.
Most accessories that are compatible with the second generation are compatible with the third generation.
The iTouch uses mp4 files. All you need to do is convert the file to an mp4. Any video converter you download will work to convert it. Google: free video converters.
they are two different things! an itouch is basically everything that the iphone is without the phone. you can also install most of the apps that you can on an iphone on an itouch
Your iTouch should have come with a connection cord that you hook up to an USB port. This automatically syncs the iTunes library to your iTouch. Wait till the sync is complete, then unplug your iTouch. You should now be able to play your game. Note: If it is not an app it is not compatible with an iTouch.
Check go with SSH
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.
iPhone and iPod touch games (or other apps) are never compatible with an iPod nano.
Yes, you do. iTunes is required to activate the iTouch.
You might need to install a new version of Apple software in your iTouch.
Of course, downloading the wrong things to it that aren't compatible or not understanding before jailbreaking can brick your iDevice. Hopefully DFU mode and restore can get it out.