You'll have to find a container that fits, last year i used a pie container and hatched 6 eggs.
If you got it from LLL, the vermiculite they sent didnt need to be moistened, it was perfect, i used the clump method.
The wire and tray go in the bottom, the tray first, then the wire, the tray is there to hold water for humidity. the wire is to keep the container off the water.