There are few working examples using GLSL and multitexturing on the net. Finally I figured it out.
https://docs.google.com/leaf?id=0B9hhZie2D-fENDk1M2EwOGMtYjRlMS00NDY3LWFmNmEtZDU0MWVjMmQyM2Uz&hl=enIf anyone can help, my ATI throws: "Validation warning! - Sampler value sampler02 has not been set in fragment shader
Validation successful." when I run the program, but all the catches written into the code pass, and the shader behaves as expected, including the use made of sampler02 in the fragment shader so it is obviously bound to the correct texture. I know ATI were having issues supporting GLSL...