Thanks for the effort!
But I'm afraid I can't open your .cap file because of the version-issues of Construct. And I can't update either, so that's a bit of a problem...
As for your EDIT: that's what I was trying to do. I did it like this, but it does not work. How can I make it work?
(link because image is big)
What I did here was create a NPC (Mitch). I first check if the player hasn't already seen the tutorial, and if not, then when your mouse is over Mitch, a balloon pops up above his head. When the balloon is visible (and above his head), you can click him to make the tutorial visible.
When the tutorial is visible, you should be able to click anywhere or push any button to advance to the next animation frame, but that doesn't work. Is it because I use so much Subevents?