Hi,
In the reporting, you would be able to create filter on order status and make difference between all statuses.
When an order is modified, it always use the "Order status notification".
So you have to modify the content with some PHP code in order to have specific content depending on the order status.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.