Hey there @darius1911. No don't worry you didn't do anything wrong, there was a bug with Captcha on discussion pages which I had discovered previously but didn't get fully patched out. If anything due to you making a post about it here was better as it meant I happened to come across it a lot sooner!
Anyway as for the lighting fix for Batman Arkham City, I've gone ahead and added it as a fixbox to the article page and uploaded the graphic cache files to the downloads section so that they will remain easy to access for anyone in the future.