Got my order fast, which was awesome, just got a question. I got a 5pack of FS eGo Cartomizers. They came without a top, and a baggie with some caps i'm assuming, 5 opaque white plastic, 5 silicone, both of those with a hole in the top, and 5 silicone cover caps. How do I assemble these? obviously fill them then put a top on, but I'm unsure which top to use in order to use them properly? Thank you for any help, I assumed from my reading that cartomizers all came as one piece.