Crush the entire package of Oreos in a food processor or plastic bag. Transfer to a bowl and mix in 6 tbsp melted butter. Press cookie mixture a 9×13 pan and refrigerate. Beat together 1 cup powdered sugar, the cream cheese and 1 cup cool whip. Spread over cookie layer. mix together the pudding mix, milk and another cup of cool whip. Spread over the cream cheese layer. layer sliced strawberries on top and top with remaining cool whip. Refrigerate at least 2 hours.