I created a new scene, deleted the cube and imported this OBJ file (created in FormZ). After that I did not see the scene but after following up Cegaton's advices the scene showed up (but I must say I don't really understand what I am doing).
After that I moved the lamp and made it a sunlamp. Somehow I cannot rotate the lamp to point it to the house in the scene. I don't understand that.
