Having a complete nightmare here and need expert advice.

Received a set of carbon levers for my R1s today, so have been trying to remove the aluminium levers with distasterous results. On one lever I have managed to remove the two red bolts in either side of the lever barrel, but when I try and remove the tiny adjustment screw that sits inside the lever, the allen key just rotates inside the screw.

On the other lever I have removed one bolt, but the bolt on the other side just rotates with the barrel. It seems I have also cross threaded the thread in the side of the barrel where the bolt has been removed and I can't get the screw back in now.

Does anyone have proper fitting instructions for the carbon levers, or any idea how I get myself out of this mess?