STIR boiling water into dry gelatin mix in medium bowl at least 2 min. until completely dissolved. Refrigerate 20 to 30 min. or until slightly thickened (consistency of unbeaten egg whites).
MEANWHILE, place cookies in food processor container; cover. Process until finely crushed. Mix with butter; firmly press onto bottom of 12-inch pizza pan.
REMOVE 1/2 cup of the thickened gelatin; place in separate medium bowl. Add whipped topping; stir with wire whisk until well blended. Spread onto crust to within 1/4 inch of edge. Arrange fruit over whipped topping mixture; brush or drizzle with remaining thickened gelatin. Refrigerate at least 2 hours. Cut into 12 wedges to serve. Store leftover dessert in refrigerator.