It took me some times, but here it is. If you have a look at the right column of the blog, you'll see that I have added three pages to the blog.
Those pages are detailed, step by step, explanations on
-how to add isometric movement to your own framework
-how to make basic isometric tokens
-how to turn any map into an isometric one, using Photoshop or GIMP.
Some of those explanations had been given on earlier posts, but those here are easy to follow without any knowledge about Maptool frameworks or Photoshop or GIMP.