I have made the image the way you told, but there is where the problems starts
You sayd "then, load the image into the image buttons, "
That is the image buttons? I can load the picture in the UV/Image editor, and if I press N there i get a window that says, Properties, Image size : , A Anim button, with a Start, End and Speed value, And a Tiles button, X and Y vaules… but thats not the right way to do it, right?
The other way I manage to load the picutre is by pressing the shading button, then Material, add new material, then the texture button and add new texture, select Texture type: Image and load it, then I get a Image meny and a Anim and Movie meny. But none of those metods gives me the opportunity to set , the number of rows, and columns, that you are talking about