Help Please

I am trying to do the joan of arc tutorial through blender and cannot figure out how to put the picture on a cube. If anyone could help it would be greatly appericated,

I think that’s what you’re looking for :
http://membres.lycos.fr/bobois/Tuts/boite_de_projection/boite_de_projection005_en.html

Thanks for the help/ Now i just have to figure out how to split the areas.

Ok i fiured out how to split areas, now the rest. I wish there was one with the new blender.