Arrange half cake slices on bottom of 13 x 9" pan; set aside. In a mixing bowl, combine sweetened condensed milk, water, and pudding mix. Mix well. Fold in vanilla extract and whipped topping. Pour half the mixture over cake slices in pan. Arrange half the peach slices on top. Repeat layers. Chill 4 hours or until set.
Per serving: 287 Calories; 1g Fat (4% calories from fat); 4g Protein; 64g Carbohydrate; 4mg Cholesterol; 159mg Sodium