1. In a small bowl, combine cracker crumbs, sugar and butter. Press onto bottom and up the sides of an ungreased 9 inch pie plate. Bake at 350 for 9-11 minutes or until set. Cool on a wire rack.
2. For the filling, in a small mixing bowl, combine the cream cheese, confectioners sugar, milk and vanilla. Carefully spread over crust.
3. For topping, in small saucepan, combine the sugar, cornstarch and water until smooth. Bring to a boil ; cook and stir for 2 minutes or until thickened. Remove from the heat; stir in gelatin until dissolved. Cool to room temperature. Refrigerate until slightly thickened.
4. Arrange raspberries over filling. Spoon gelatin mixture over berries. Refrigerate until set.