SOLVED: Script based on the Orb Pillars not working...

[39Games]

G'day guys,
I've been working on a map for my custom story, which involves essentially the same situation as the Daniel ending on the final map in TDD (knocking the orb pillars over).

I have transferred the scripts over from the map to mine, and I have it working so far and I've added room for a 4th pillar.
What works is that I can knock three of the pillars over, but with the fourth one the impluse trigger doesn't seem to work, I have to push the player against it to knock it over.
And once each pillar falls down, a specific event happens, and after the fourth one, I can't quite figure out how to trigger an event...

So what I am asking here is...
How can I trigger one event after certain conditions have been met? (in this case the four pillars knocked over)
And how can I edit the script from the original TDD map to include a 4th pillar rather than three?

If you guys need my script let me know.

Cheers!