Dissolve gelatin in boiling water.
Stir in frozen concentrate.
Add fruit and pour into a 9 x 13-inch pan.
Chill until firm.
Top with the following frosting.
1 pkg.(3 oz.) instant lemon pudding 1 C cold milk 1 envelope whipped topping mix, prepared as directed.
Blend pudding mix with cold milk following pkg.directions.
Fold prepared topping into pudding mixture.
Spread on gelatin layer, chill.