How to make a custom Terrain Height Map with GIMP! (w/pictures!!)

[WhiteLightHeart]

It wont let me save as a png! its ticking me off so much! And any guide to how to save png's in gimp is like rocket science! Please help!

i have gimp but when i try to save it it says i can only make with gimp xcf not png

An easy way to make a file ".png" when using GIMP is to do this:
1.) Open your file in GIMP.
2.) Open the 'File' tab
3.) Click "Save as..."
4.) When the window pops up, at the very top you will see "Filename.gimp" or "Filename.jpg"
     - When you see this, type in Yourfile'sname.png
5.) Press 'Save' or hit your Enter key on your keyboard.
That's really all there is to it~

A good tutorial, by the way. The images added with it were a very nice touch.