I am developing my site based over the Commerce Kickstart demo, but I can't get the "collection" pages (Product catalogs) to work correctly. The new products that I create are not displayed through these collection pages...

I created a new product type + product display (ok)
I add an instance of this product (at "Add Product"), I select the Collection and Category at the comboboxes (ok).

But then, when I go check the Collection page where the product should be displayed, it's not shown. Only the "CK product types" are shown, but mine not.

Just to test, I tried to modify the value of "Menu path type" (in "admin/structure/taxonomy/collection/edit") from "Commerce Kickstart Taxonomy" to "Default", and then my products are shown... But, all the site gets unformatted when I do this.

I would like to use the Commerce Kickstart model, it's so nice, can someone help me please? What I am missing that my items are not shown?

Thanks