Drain oranges and pineapples, saving juices. Add enough water to juice to make 3 1/2 cups liquid. Head 2 cups of this liquid and dissolve Jello in it. Then add remaining liquid. Chill until slightly thickened, then add fruit and undiluted orange juice. Chill until firm. After it becomes firm, add the following to the top as an icing. 1 cup cold milk 1 small Instant Jello lemon pudding mix 1 8oz Cool Whip, softened Mix cold milk and pudding mix with electric mixer. Fold in Cool Whip and put on top of Jello salad. Refrigerate overnight.