Well, use Single Player Commands (http://www.minecraftforum.net/topic/943 ... pc-noclip/) , put it in your versions folder and if you know the drill, just do it. You will need to be in 1.6.^. because it isn't updated yet, i think. So try not to put 1.7 blocks in the world. Hope it helped
The lines aren't very well drawn and second the drawing has been stolen from FinsGraphics, don't try to copy people, their is always going to be someone who is going to recognize a stolen artwork
