I've been looking for this for a very long time now, but for some reason, I can't seem to find it on any of the soundtracks...unless I need to double check. The song is played from 3:40 to 5:18.

YouTube - Naruto Shippuden | Episode 59 | Part 2/2 | English Dubbed (http://www.youtube.com/watch?v=n9BAf0jOMJU)

Edit: ...And I just realized I posted this in the wrong section! >.<