Ah, I see. That particular version was written by Joseph Frank, who used to come around here as The Duke. That's the sort of thing I meant when I said instrumentals and covers. I'm sure if you can contact him, he would probably give you a copy of it.
http://www.bricksinmotion.com/forums/user/246/
His email is in his profile.
If that doesn't work you could ask around (in this thread, or chat), and others might know of more up to date contact info.
Note, I'm not being dead serious about the piracy thing; while I don't support piracy or condone it, it's not my business how other people decide to do things. I prefer to see people get things legally, though, of course.