Pretty much. The way the tracks are delivered, on 6 stereo tracks, is interesting, as they're really just mono tracks made stereo to make the purchase of them from iTunes easier. Really, it's 12 mono tracks (except maybe the BG Vox). I have Cakewalk Sonar Home Studio 6XL, and it can't handle iTunes Plus files, so I had to make a playlist in iTunes, burn that to a CD, then import the tracks off the CD into Sonar, then solo and hard pan each track one way one by one and do a bounce to track to get mono tracks. There may have been an easier way to do it, but it wasn't hard. Just a bit time consuming.
Again, I'm guessing that a lot of you are like me, and don't really know diddly shit about "remixes". Mixing, yes. Remixing, no. Pre-mixed and effected tracks is probably a decent solution for people who do traditional remixing. But if you're looking to actually mix this, throw your faders to unity gain and there you go. Done.