if you have downloaded the itunes back. you have convert the itunes to the format ipod nano supported.
itunes
The iPod Nano does not use apps.
The iPod nano, is supposed to be used on iTunes. iTunes should recognize it.
you have to buy them in itunes under ipod games and make sure its for the ipod nano your generation
The iPod Nano cannot use apps.
Yes, you need iTunes for any iPod.
the iTunes store
The iPod Nano does not play games or any other apps.
The current iPod Nano does not display photos.
The interface with the Itunes application is a great feature on the Ipod Nano.
The apps from the iTunes app store only work on an iPod Touch, iPhone or iPad. They will not work on an iPod Nano. There are some games available (See links below) for the iPod Nano which you purchase from the iTunes store . Once downloaded you sync them to the iPod with the iTunes software under the Games tab.