On the original post of this scenario on the Tilted Mill forum site, a custom map file was necessary to play this scenario. See reference below:
Please unzip the attached file, wl_map_Greater_1_1.zip, to the folder "..\Children of the Nile\data\Graphics\world level\map", to get the world level to work properly.
Does ANYONE have this file, and would you be so kind as to post it here?