Hi, thank you for your reply.
Looks very simple, until I am in the Hikashop parameters 
I find nothing saying 'Parent category' and am not sure where that is, but the only place I can choose the category is 'Associated category' so I did that. how ever, when I save, it always goes back to 2 product category.
As of now, the module displays the category image (root) of All categories.
I have 7 main categories
"Sport products" is just one of them
and I don't need to show the image of it, just it's 1st level subcategories.
As the structure is, I am just unsure what to choose under Sub elements filter both in Details and under Parameters for categories.