Nevermind the PM I sent you. I had no idea it was as simple as searching the forums for "yellow9" and finding this game pack. The pack itself is wonderful, variety, surprises, survival, and a hint of challenge in every map. I'm really glad I got to play WonderCubes, very fun, very surprising at certain times. My dearest apologies for PMing you a stupid question! xD
I used INVedit (and MCedit for Mystery of the Missing). Otherwise, everything was built by hand. The hardest one to build was Wonder Cube 3.0.