installing my apps from my one ipod to my new one and for the minecraft one, it installs it but doesn't bring the parts of the game i have already completed why is that?
App date like saved games are not included with the app in your iTunes library. You have to restore the new iPod from the backup of your old iPod. See:
iOS: Transferring information from your current iPhone, iPad, or iPod touch to a new device
Retrieving data ...