Here's a new version.
A whole lot has changed underneath and the editor is in (press E in the main menu). You can edit all levels and also create new ones (just flip through the created levels).
The editor works with mouse and keys:
Press +/- to flip throught the available elements, left mouse button to set an element, right button to pick the tile under the cursor.
Press D to change a creatures start direction.
Press N to change a levels name.
Press Shift +/- to flip through the levels.
F2 to save the current level.
Escape to go back to the main menu.
Still more code needs changing, and then i can start to add more diversity to the game itself.
http://www.georg-rottensteiner.de/webmisc/DrDobbs_WIP1.zip