Hi,
Which Virtuemart version are you using ?
Do you think it will be possible to have some details about the order data in the database ?
If the orders are not imported it means that something is not working when the import made his queries. There are some "joins" between tables and if some data is "missing" it can result some no data result.
But I know that we made some modifications recently in the VM import in order to have less restrictive queries (using LEFT JOIN instead of INNER JOIN to retrieve as much information as possible).
Maybe if you re-download HikaShop 2.3.0 (I don't know when you download it) the latest package could work better for the import.
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.