PREHEAT oven to 350°F. Remove 1/3 cup of the pecan halves; reserve for garnish. Coarsely chop remaining pecans; set aside. Beat margarine and granulated sugar in large bowl with electric mixer on medium speed until light and fluffy. Add eggs, one at a time, beating well after each addition. Blend in sour cream and vanilla. Add flour, baking powder, baking soda and salt; mix well. Stir in the chopped pecans and 1/2 cup of the cranberries.
POUR batter into lightly greased 10-inch tube pan.
BAKE 45 to 60 min.or until toothpick inserted in center comes out clean. Cool in pan 10 min. Remove from pan; cool completely on wire rack. Drizzle with Simple Powdered Sugar Icing. Top with the reserved 1/3 cup pecan halves and the remaining 1/2 cup cranberries. Let stand until icing is firm.