Hi,
First, I see that you're talking about options. By default the options are not displayed as separate lines, but together with their main product. When that's not the case, it can be really confusing as you can't easily see which option is for which product.
So to avoid that, make sure that you have the "group options with product" setting activated in the HikaShop configuration.
Now, if you want to change the ordering of the products on the cart display of the checkout, that would require editing the file checkout/show_block_cart.php via the menu Display>Views and adding custom coding to change the order of the products in the $cart->products array.
