Cook orzo according to package directions. Drain and rinse in cold water; set aside.
In a large bowl, combine the pudding mix, sour cream and pineapple. Stir in pudding mixture. Stir in the oranges, marshmallows, peaches, cherries and orzo. Fold in whipped topping. Sprinkle with coconut. cover and refrigerate for 2 hours or until chilled.