JoeToys:
I will admit that I am completely new to Zen Cart. In fact I am completely new to eCommerce management. But I have spent the last 8 years working in digital marketing, advising hunderds of clients, many of which were ecommerce sites. And, I can promise you that the industry standard is to show products on all category pages. There's no point to even having a hierarchy system if you can't stow products in a category, if it also contains a sub category. It makes no sense. Why even have sub categories???? Is Zen Cart really that out of the loop????
Like I said, I think that I have seen ways to make it possible to show products on a category page that also has sub-categories and obviously the core coders are around and may even support the changes necessary; however, generally speaking when such a change is requested it is usually prefaced with a request for a description of the business need being met.
For example, let's assume that I have a product that is offered as like an Ultimate product where it carries all features available, and then I wanted to offer sub-versions of the product, like a gold, bronze or silver version, I could maybe see how the ultimate product would be in a category and then the other versions be shown each under a separate sub-category, though only in part could I see that as I would think that the product would be best served all in a single category or as a single product with attribute like options...
Overall, what I have seen in the ZC forum has been to yes minimize the sub-categories, make any chosen category (whether "primary" or as a sub) count to minimize customer navigation and maximize conversion. Easy find, easy purchase, next...
While still waiting to understand the need behind having a product in a category that has sub-categories (meaning what purpose does the sub-category at that point server), there are things that can be done to maintain the database structure of products only being in the end of a category tree, but yet provide options off in various directions to appear as if the sub-category is "in-line" with the product being displayed... In other words, the admin side may (without revision) look different than the store side as far as navigation, but even then the admin side could be modified further to replicate the store side...
Basically though, again perhaps you could provide some enlightenment on a setup that would benefit from having a product alongside a sub-category in the navigation of the category dropdown list basically..
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