Hello,
1 - A vendor have one single "administrator" but can have a lot of "users".
If the user have the ACL "order / notify" he will also be notified by email when an order is made (depending the order status you have configured for the notifications in HikaMarket).
2 - Which "continue shopping" are you talking about exactly ?
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.