rustler FLM chassis

[jediguru]

I'm having an issue getting my FLM chassis setup on my electric rustler. Most everything was fine except how do the two supports between the upper deck and the chassis attach to the chassis? There are two holes drilled in the proper spots but they are not countersunk on the underside of the chassis like the rest of the holes. There doesn't seem to be any screws that would work for that.
Also, there are a couple extra pieces that I can't figure out what they are for.
One more thing. Any ideas on where and how to mount the antenna?