Hi,
2. He was talking about the screenshot named "4" in your previous post.
Even if the option is set to "inherit", Nicolas recommend you to set it to "no".
But I made some test and I don't see any random image. It's the product listing and the image I got in my browser are the exact same content as you made in your screenshot. So it's not random at all ; that's why I do not understand your question (and I do not understand the answer of Nicolas too).
Well, it's my point of view.
1. Well, let's reformulate what Nicolas wrote.
Please make sure that you selected the "default tax category" in your products "tax category" option or the tax rule will be ignored.
When you create or edit a product, you can select a tax category.
If the product have the tax category set to "none", it will mean that the product won't have any tax applied.
So you have to check that your products are right using the tax category named "default tax category".
See "product tax category" here :
www.hikashop.com/support/support/documen...r-documentation.html
Regards,