Crumble flour and margarine together. Blend well. Press mixture into the bottom of a 9x13 inch pan. Bake 15 minutes at 375 degrees F (190 degrees C) and let cool.
In a mixing bowl, cream cream cheese and sugar together. Stir 2 cups whipped topping into the mixture; whip together and spread evenly over cooled crust.
Mix the pudding mix with 5 cups milk (do not follow directions on box). Pour this mixture over the second layer and top with remainder of dairy whipped topping. Refrigerate and serve chilled.
