Pineapple cheesecake slice

Ok, tried this now, it's incredibly yummy, but the filling didn't really set (not that it matters to the end result, it's very creamy), plus I used a lamington tin (quite large) and found the filling and base wasn't quite enough, and the topping was well short, so I'll post the altered recipe first, and leave the original below it.
The base uses a marge/ kremelta combo as Olivani is too soft by itself, you could use straight margarine if you can find a hard one that is dairy free.
I'll be posting a cooked chocmint cheesecake later when I can track down soy cream cheese again, the local supermarkets seem to have stopped stocking it.