Here is a work-in-progress of an overview map for AACW. It is procedurally generated from the .rgn and .scn files in the GameData folder using a free language called Processing http://processing.org/.
I plan on releasing the code for general usage and modification as soon as I tighten some bits and pieces up.
Anyway, since it is procedurally generated from the .rgn and .scn files, it is easy to keep it up to date with the latest patch. Currently it is for patch 1.13b.
let me know if you think it is useful. I can make some minor modifications based on suggestions.
Below is a small version. A larger verision (1600pixels across) is also attachedinside a .zip file.