Cream margarine, sugar and coconut rum, beat in flour until blended. Stir in nuts. Pat into 10x15" pan. Bake at 350~ for 10 minutes. Cool. CHEESE LAYER: Beat cheese, sugar, eggs and coconut rum until creamy. Stir in pineapple. Pour on baked crust. Mix nuts and coconut. Sprinkle over all. Bake at 350~ for 20 minutes. Cool. Cut into bars.