Hi,
1. Any text in HikaShop can be overridden as explained there:
www.hikashop.com/en/download/languages.html#modify
2. Edit the file "cart" of the view "checkout" via the menu Display->Views and change the line:
<input id="hikashop_checkout_quantity_<?php echo $row->cart_product_id;?>" type="text" name="item[<?php echo $row->cart_product_id;?>]" class="hikashop_product_quantity_field" value="<?php echo $row->cart_product_quantity; ?>" onchange="var qty_field = document.getElementById('hikashop_checkout_quantity_<?php echo $row->cart_product_id;?>'); if (qty_field){<?php echo $input; ?>}" />
to:
<input id="hikashop_checkout_quantity_<?php echo $row->cart_product_id;?>" type="text" name="item[<?php echo $row->cart_product_id;?>]" class="hikashop_product_quantity_field" value="<?php echo $row->cart_product_quantity; ?>" onchange="var qty_field = document.getElementById('hikashop_checkout_quantity_<?php echo $row->cart_product_id;?>'); if (qty_field){<?php echo $input; ?> this.form.submit(); }" />
3.Edit the file "cart" of the view "checkout" via the menu Display->Views and add something like that:
<?php echo $this->cart->displayButton(JText::_('BACK'),'back',$this->params,hikashop::currentUrl(),'history.back();return false;','id="hikashop_checkout_back_button"'); ?>
4. Edit the hikashop options of your menu/module via the menu Display->Content menus/modules and change the item box layout to image and description for example.