I somehow broke both corner lights and I have purchased replacements. I can't for the life of me figure out how to put the screw back in once the new light cover is in place. I can't get the wrench in there to tighten it. :?: Can someone shed some light for me please?

I'm going to assume the front marker corner lights? If so, pull the two large thumbscrews out of the top of the headlight mounts on each side, and pull the headlights out of the way. No tools necessary, this is a really cool design. You can access the screws that way. There should be 2 hex head machine screws for each light.