[SCRIPT] I need help with my Custom Story fast!

[Aquatric]

It did not work, it just says when I pick up the key: "Picked up" then I press tab holding my mouse cursor over the key it's just blank. When I try to unlock the door with the key it says: "Cannot use this item this way!" and how do I see if I have any .map_cache? I only see in my maps folder 00_castle.map and 00_castle.hps