Hi Monty, That's kind of a big question.
I'm assuming that you have the zen cart mod downloaded from the zencart site.
No robofish. I've made a sidebox to integrate HCL with Zen-Cart. I never knew there was already a module on the zencart site. Must look at it to see how it compares with mine. My query was about where I upload my zencart integration on THIS site for others to download & make good use of.