Load 2d pic into a 3d form?


I thought this would be easy, appears harder than i thought. I have a room i made up in 3d max with a blank wall with a large pciture frame and i would like to load pictures dynamically into this frame (jpg’s) so they appear in perspective.
I thought that I could just transform a clip to the right perspective and have the 2d jpg’s loaded into this traget clip and they would take on the perspective of this clip, but that doesnt seem to work…Any ideas ?