Unfortunately I no longer have the old version the post was originally about, as I decided to rewrite in a more streamlined and sensible fashion after having learned more about Construct.
I have the heavily WIP rewrite, which contains only a few of the features from the old game, but also possibilities for much more. It's quite buggy, but the basics are there, with a system allowing for NPC battles, allies, faction relationships, etc... It might spur some ideas for you.
I've put them in a RAR file with the documents I used to keep track of data and formulas and uploaded it to Dropbox.Action RPG Demo WIP
Switching maps is broken, sometimes the AI hang when they go into combat with each other. You can't attack yet, but that's because the animations aren't done or enabled. The enemy can attack you though, and the mechanics are in place to attack him as well. Rudimentary ally stuff, dialogue, etc... It's also not very well commented, just commented enough for me to know where I was in my code, but not really meant as a tutorial. It's very very incomplete compared to my last iteration of the engine, but with the benefit of potentially greater flexibility.
I won't be working on this for a long while, as I'm currently developing another game in Construct 2 that's coming along far better and more quickly, as developing an RPG requires a lot of planning. I do wish you luck in your endeavors though and hope you find some use out of my little WIP engine!