I changed 7 plugs and boots, but the drivers side against the firewall, the little 7mm bolts just spins, tried using the air ratchet, just spins, tried putting a screwdriver under the cop for some leverage, notta....whats the trade secret?!!

 

I've changed all of my COP's, in 2 V10's, including fixing a spark plug that blew out. None of mine had the issue you are speaking of. Is it possible that the bolt or "screw with a hex head" is already broken and simply free spinning within the race with the boot from the COP stuck? Try pulling out the COP with the boot attached. If it doesn't come loose, somehow the boot is stuck. If it is loose but the screw is keeping it from being removed, try using a tool, "fork" type, to apply pressure while removing. Does it re-tighten?