MIX graham crumbs and margarine; press firmly onto bottom of 13x9-inch pan. Beat cream cheese spread and milk until well blended. Stir in whipped topping. Spread over crust. Refrigerate until ready to use.
STIR boiling water into dry jelly powder in large bowl at least 2 min. until completely dissolved. Stir in cold water. Refrigerate 1-1/2 hours or until thickened (spoon drawn through leaves definite impression). Stir in strawberries. Spoon over cream cheese layer.
REFRIGERATE 3 hours or until firm. Store any leftover dessert in refrigerator.