There are some plain tga files in the archive but the files i have a problem with are .shp files.
looking into the exe I found
PNG file corrupted by ASCII conversion..Not a PNG file.
and I found
Unknown zTXt compression type %d
I have attached some sample files and the main exe.
http://www.MegaShare.com/1224034
here is a screen shot from in game that may help identify one of the icons.
