Collision takes a little more effort to get working properly with model-only levels, one of the few disadvantages. Thing is, you need to use c_move to do collision. Collision is outside my realm of knowledge so I don't know. With 18+ million polygons per second rendering for cards in 2004, that's serious power.
"You level up the fastest and easiest if you do things at your own level and no higher or lower" - useful tip
My 2D game - release on Jun 13th; My tutorials
