you dont unless you resync it to the backup
You can't.
You can't get them back
You must drag it back onto the iPod via iTunes when your iPod is plugged into the computer.
mmm the same way you got them to the ipod
Yea I think so.
If it is an ipod you can just sync it with itunes.
you cant. their gone forever
If the song is deleted, then you can't put it on your iPod.
Yes your songs will be deleted but you can get them off the iPod using a program such as iDump or iPod2Computer Transfer Curtis White
Everything on it will be deleted, so back up everything on your computer.
You have to have that photo already saved on your computer. Just connect the iPod to the computer, place the photos onto your iPod and sync it.
No.