Okay, I haven't specifically received direction, but would hate for this product to undergo a significant change over the weekend to resolve something like this. (Although perhaps the result would be an even better product). Regarding the customid, I don't see why I can't provide guidance to find the solution.

Take a look at what is needed in the zen_get_customid function and take a look at what is being fed to it. I believe either of the two of you would be able to narrow down the issue with that.