Dissolve cherry Jello in 1 cup hot water.Add 1/2 cup cold water.Chill until Jello is partially thickened,and stir in cherries.Pour in 9 x 13 pan and chill until set.
Dissolve white grape Jello in 1 cup hot water. Chill until partially set,Then mix in 4 oz. cool whip with mixer on high speed.Pour on top of cherry layer.Allow to set.
Dissolve berry blue Jello in 1 cup hot water.Stir in 1/2 cup cold water. Chill until partially set, then add blueberries.Pour on top of white grape layer,and chill to set.