Hello,
1 - The HikaShop import system is there to perform import. Afterwards I'm sorry but I don't know what you're talking about.
If you have specific questions for the HikaShop import, please post in the HikaShop section of the forum.
2 - When you "pay" the vendor in the HikaMarket backend, it creates a special kind of "order" and the vendor is notified for that.
And when order are made by customers, the vendors can also be notified for their sales.
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.