Here's a link to the texture files:

http://imageshack.us/g/689/tile1y.png/

And the shaders from AUM 95 don't seem to be working correctly when I run the test levels that come with them... the shader viewer from the main 3DGS download page for example, does work.

Edit: I got the shaders from the AUM 95 examples to work, but I'll need to see if they work in my own level now...