Recipe(tried): Blueberry Crunch

I have a great recipe for blueberry crunch. Here it is;

1 stick butter
1/2 pkg. graham cracker crumbs
1 small pkg. dream whip
1 tsp. vanilla
3/4 c. milk
1 (8oz) pkg. cream cheese
1 can blueberry filling

Melt butter, mix with graham cracker crumbs. Place half of this in a 2 qt. dish.Mix dream whip with cream cheese,vanilla, sugar, and milk. Add half of this mixture over cracker crumbs. Then put pie filling over this. Mix rest of cracker crumbs with rest of dream whip mixture and spread over pie filling. Chill.