The real Requiem for a Tower

I already know about the tracks in the Corner Stone Cues album, the 6minute fan version, and the original Lux Aeterna, but I’m looking for another version that I’m pretty sure is on iTunes, Amazon, or eMusic. It is about 4 minutes long and sounds very different from all the others. I think it is here: Requiem For A Tower – YouTube (http://www.youtube.com/watch?v=nZf-ZYTsx6c)
I can only find it on YouTube(I have no iTunes or any other account), but I can assure you that this is a legitimate track. Notice the difference in the beginning?

It’s from here:

Requiem for a Tower Dream – Single by Various Artists – Download Requiem for a Tower Dream (http://itunes.apple.com/us/album/requiem-for-tower-dream-single/id317781690)

and 2 bucks, goddamn

also this is not the "real" version, it’s just another, but official, arrangement. This guy wrote it good:

All right, there have been several reviews about clarifying where this piece of music came from. So, I will throw in my two cents. This is not the original version of "Requiem for a Tower". The reviewers are correct that this was orchestrated for the trailer to one of the Lord of the Rings movies. However, the piece, or actually pieces, that appeared in the trailer are featured on the album "Requiem for a Tower" by Corner Stone Cues. In appeared in three movements, and each piece is more striking in performance. I prefer the Corner Stone Cues version, as it has a much richer sound to it. No matter how you look at it Lux Aeterna/Requiem for a Tower is a great piece of composition.

Okay, thanks a lot!