Hello Giorgio,
1. If you want a table view listing, you'll just have to set the "" option to table through your product/category listing content menu/module ("Hikashop->Display->Content menus/modules->Your content menu/module")
2. To do that you'll probably have to edit the code of the "listing_table" file of the "product" view of your front-end template via "Hikashop->Display->Views"