You're right about some of that... DS was indeed in IMC 7 with that song, i remember it.
I think Space Cowboy's IMC9 song was an entry.
I also never got a chance to enter IMC10 as i didn't have a ton of time, when i could i ran into memory problems with Fruity Loops dropping channels, or giving me corrupted sound. (I ran into this problem with the MegaMan compo as well, i had a good mix going, too.)
Prophecy's IMC 10 WIP "Dark Stand Evolution" was never an official entry, but it might as well have been, it seemed finished to me, and i liked it better than the final.
IMC12's entries are good (Kyle Nin wasn't Kylejcrb, i checked), but Sadorf's Fake song wasn't a real entry. In fact, out of all the non-entry songs, i'd say Sadorf had the most. It took an act of God to get him to start naming his music, and i think he's still leaving off endings when he remixes (though i haven't heard anythig on OCR of his, so maybe not). His IMC6 song was still one of my favs though.
My Quickie Contst entry wasn't saved in the same spot as usual for some reason, and i'm not sure it wasn't on a corrupted drive. It may not have been, but i'm thinking i'd have run across it by now otherwise. I still have 2 more hard drives to finish fixing, so it could be there as well. It may also be possible to replicate it with save files from Fruity Loops itself. As far as Mae's version... hmm. lol. You'll have to ask the Resident Chocobo herself about that one. Something tells me i never actually got that one, but it was also like 4 years ago, and i could've forgotten i DL'd it.