Time and Space was mentioned in an issue of Animerica a few years back, so I got it. I really enjoyed it after getting used to the electric guitar featured in several tracks. It's a great find for a Yasunori Mitsuda fan.
The track you mention isn't on this album though, although Mustin is listed as a Co-Director. I'm guessing it's from something else that OneUp Studios did.
From the title of the thread I thought it was going to be a topic about that as well.
Anyway, I agree with the second post. I'm almost positive I've heard Time and Space streamed on one of my gaming stations. Pretty sure it was listed as a tribute. I don't remember the peice specifically except that I thought it was awesome. I'm gonna have to hunt it down again