Hi,
Paypal have some options to notify your server and confirm the order when the order is paid.
If you do not use it, or if you do not capture the money automatically, it will means that you will have to do such job manually.
I will recommend you to activate these features to have your orders automatically confirmed by paypal itself.
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.