You can download the sound track easy, just search it through a FLVDirect player.
Just get any FlvDirect player
ex:
link (it´s a free one, supports search on 1600 Streamsites)
1. click on -> search -> Music
2. search for "Fox River prison soundtrack" (it´s online, i searched it a minute ago)
3.select your episode and click on -> watch/listen online or -> download
enjoy
PS: you can also search for movies,tv shows, musicvideos etc etc
(If you search for a certain episode of a tv show just add "all ep" to name in the search field and you will get all episodes listed)