I'm sorry that the link's not working (funnily it was just yesterday).
I do have a local copy of the presentation but it's several mb and too big to upload this from my workplace. Just try finding it in the forgotten realms of the internet
As I'm not the author of zBot nor affiliated with Mike Booth or Turtle Rock I can only speculate and tell you things you could find yourself by doing some research, I'm sorry. Why are you so interested in it, anyway ?