Not to bump an old thread, but my point is actually that the game could use another more updated tutorial on events/triggers (and your video in the original post is missing, so I wasn't able to learn from that.)
I had a bunch of questions (actually posted it first over on the Steam forum, might as well just link that). It'd be good if you gave us more guides/tutorials/help on how to create stuff like this, because that results in creating content for other players...