I already send this to the HOpenGL list, but I'm kind of in a hurry with this and I'll probabbly get more responses from you...

I've been looking for a way to map a texture into a Quad primitive with HOpenGL with no luck. I've already done this in C++ and had no problem. I did the tutorial in http://www.haskell.org/~pairwise/HOpenGL/HOpenGL.html, downloaded the sources, compiled them and it worked great (After changing a 2 lines to make it work with OpenGL's latest version), but when I change the code to use a .rgb file created by me with the program they provide from a .png file of 256x256 pixels I don't have the same luck... My OpenGL version is 2.4.0.1... 

I'm REALLY lost, clueless, so any kind of help would be greatly appreciated.

I checked the textures in the examples of the red book, but they are "procedural" textures, and I need to map an image.

One of the pictures I need to map is in http://dl.dropbox.com/u/1476919/Orange256.png

Are six like that one and are for making a Rubik's Cube. After I finish it I'll upload it to hackage and let you all know.

Thanks a lot,