Thanks AA but unfortunately that isn't working. I have no problem installing the levels but when I go to the world folder they aren't there. I can play the levels fine but I've noticed that if I close and restart knyttstories.exe the levels I've installed are not there anymore. Is this normal? Is it supposed to save levels you've installed? I think this might have something to do with it because if it saved them they would show up in my worlds folder so I can drag them to my ds flashcart.
Also, after you install a .bin level file does knyttstories create a folder with all the other files? like the music, tileset, story etc??