Cool Whip Treat
["2 1/4 c. chocolate wafer cookie crumbs, divided", "1/2 c. sugar, divided", "1/2 c. (1 stick) margarine, melted", "1 (8 oz.) pkg. Philadelphia Brand cream cheese, softened", "1 (12 oz.) Cool Whip", "2 c. boiling water", "1 (8 oz.) pkg. or 2 (4 oz.) pkg. Jell-O brand orange flavor gelatin", "1/2 c. cold water", "ice cubes"]
["Mix 2 cups of the cookie crumbs, 1/4 cup of the sugar and margarine in a 13 x 9-inch pan.", "Press firmly into the bottom of pan and refrigerate."]
["chocolate wafer cookie crumbs", "sugar", "margarine", "cream cheese", "boiling water", "gelatin", "cold water"]