Banana Split Cake

1 pkg. vanilla wafers
1 cup butter
4 cups powdered sugar
1 cup butter
2 eggs
1 tsp. vanilla
1 can pineapple
4 bananas in lemon juice
2 cups cool whip

Crush wafers and mix with melted butter. Spread in 9x13 pan and refrigerate 30 minutes. Combine other ingredients and spread over crust. Chill. Cut and serve with cool whip and drizzle chocolate syrup over each serving. Top with chopped nuts and a cherry.