in center. Cool 5 minutes; remove from pans and peel off paper. Cool completely on wire rack. Prepare Citrus Filling. In small mixer bowl, beat topping with mix with milk until stiff peaks form, about 4 minutes. Reserve 1/2 cup orange segments for garnish; set aside. Cut remaining segments into thirds; gently fold with orange peel into topping. To assemble, place one cake layer on serving plate; spoon half of Citrus Filling onto layer. Top with remaining layer and Citrus Filling; garnish with reserved orange segments. Cover; refrigerate several hours. ----