Order sync with tax reconfiguration

-- url of the page with the problem -- : www.dreamlordpress.it
-- HikaShop version -- : 2.4.0
-- Joomla version -- : 3.4.1

Hi,

I recently reconfigured taxes on my Hikashop Installation.
I'd need all of my orders (from a certai date on) to be synced (all of my order_produts should get the new tax from the products' tax category).

Is there a simple way to do it, ad tax_info field in order_products and orders tables is quite complex?

I'd need the proper tax_namekey to be showed up in the orders' views and invoices.

Thanks,
Nicola.