Songs for a new world Backing Tracks

I wouldn't normally do this, but I am DESPERATE for the backing track of the song "The New World" from "Songs for a new world" to use for an assessed performance (So important stuff) I know one exists, as a group of my friends have performed it before, but when I asked them for a copy, they replied with "I dont do anything for free anymore, so it'll cost you 10!"
I think that takes the piss a tad, and I cant afford to spend 10 on ONE song!
So I am asking in a plee of desperation on here!
Please PM me if you have this, or know where I can get it!