[Bl0nkt]

Let me wrap it up in a nutshell.

Copy everything you see in the PHP Code (the colorful words in the scrolling box). Go to the level editor (Easiest way is to go on graal2 and hit "Editor"). Go to Baddies, NPCs, Chests and click the thing that looks like an outline of a person. Drop it in the level and double-click it. Paste everything you copied into it. Close out of it and save your level with the correct prefix to use those tiles. By this I mean save your level with either "zone_arctic, zone_wars, zone_whatever" in the beginning of the filename (example: zone_arctic_test1.nw). Hit "Play" and then F4. You should be able to use the tiles.