Recipe: Seven Up Cake - Looking for my lost directions

SEVEN UP CAKE

FOR THE CAKE:
1 box lemon cake mix
1 box lnstant lemon pudding
1 cup Wesson oil
4 eggs
1 cup 7-Up (lemon-lime soda)
1/2 cup sugar
FOR THE FILLING:
1 can crushed pineapple
1 cup sugar
1 tablespoon cornstarch
1 stick (1/2 cup) butter
3 egg yolks
1 can coconut

CAKE:
Beat all ingredients together and bake. BAKE?????

FILLING:
Cook all ingredients for the filling, except coconut, until thick, low temperature. After cooked, let cool. Put coconut in mixture and spread on cake.

Lost part directions Help anyone have same ingredient or recipe. Where I found id like to know!