1. Preheat oven to 375Â° F.
2. Using electric mixer at high speed, beat together diet margarine, imitation cream cheese and sugar replacement in medium bowl until creamy; beat in orange rind and orange juice. With mixer at low speed, stir in sifted flour along with baking powder and salt.
3. Roll dough into 1-inch balls; place 1 1/2 inches apart on cookie sheet with nonstick finish. Flatten each ball with bottom of floured glass. Bake for 10 to 12 minutes. Remove cookies to wire rack to cool.