How to Display Products Horizontally

Simple question. With the JA_Purity template the products are displayed horizontally.

With my own template the products are displayed vertically.

Horizontal looks better! How can I do that?

Is it a template thing? I set the rows to 3 in Configuration/Display but to no success.

It's just a matter of configuration.
In the hikashop options of your menus/modules you have the same "number of columns" option.
You need to go in each products listing menu/module via the menu Display->Content menus/modules and set the number of columns your want.

Thanks but I tried that already.

Not working

That's not possible.
You are not editing the options of the correct menu/module. Please check all of them via the menu Display->Content menus/modules