Crush the Oreos. Add melted butter and mix. Press into a pan or in cups. Refrigerate for 20 minutes.Beat cream cheese with mixer or by hand.Add powdered sugar and mix wellFold in (do not use mixer) the whipped topping.Spread on top of the Oreo crust. Refrigerate for at least 2 hours.When ready to serve, spoon cherry topping (or fresh berries) on top.You can also sprinkle left over crushed Oreos on top.