I finished creating a commented version of the Battle Castle CRPL files for you to learn from and or modify at will. I was also planning on releasing episode #4 today, but low demand means I will probably be waiting a few days yet.
Support requests for this package should go here. Keep in mind that I am essentially done with creeper world for the year except for the planned release of #5 just after Halloween, so I may not read your support request.
Very nice.... and awesome piece of work.