I'm pretty sure you can get them from 4shared.com.
Buy The CD / Record it from tv/internet / google it
Headstrong was not a song in any of the opening or closing songs in the Naruto series.
Most likely itunes
Yes, you can download songs to your computer using iTunes.
you have to put it on your computer first and then you can download songs on to your kindle
if you have a CD then download those songs to your computer and then you can download them to your iPod or something.
live wire
use your internet download manager.
connect it to your computer with a usb cable and download the songs to that
conect it to the computer and download
load the CD into your computer rip the songs into your computer then sync those songs into your iPod
from frostwire or mp3searchy.com