no, you don't need an account.
if you have downloaded the itunes back. you have convert the itunes to the format ipod nano supported.
You need to delete it trough Itunes or similar software.
No.
Music is put on the iPod by iTunes. Downloaded music must first be added to the iTunes Libray by iTunes [File > Add to Library], then iTunes will put it onto the iPod. If necessary, music must converted into a format that is usable by iTunes. This depends on your set up. iTunes will try to convert files as it adds them to the library.
Yes you can erase songs from your ipod. If you have the iTunes software just go to your music click on the song song or alblum once and press delete or backspace.
Unless you "Transferred Purchases" to your iTunes or made a backup of your iPod, there is ABSOLUTELY no way to.
You erase everything from your iPod by connecting it to iTunes and click on iPod and click on restart.
If u have itunes put the song in itunes. connect ur ipod to ur computer with the usb cable. Then go on file in itunes and go down to sync ipod. When you plug in your Ipod after you have downloaded the song, the song should transfer onto your Ipod. If not, find the song in your music library, and drag it to your Ipod folder. That should work!!
No, your music on your computer will be safe. However, bscause iTunes only allows an iPod to be synced with one music library at a time, the music won't be able to be synced to another computer.
Yes you can -- when your in itunes drag and drop your music into the ipod touch under DEVICES tab or if you have auto sync on your ipod touch enabled -- just drag and drop your songs into the songs library in itunes!
restore it on itunes