Hello,
1. In the event that a sales personal commission is paid, it would be to the referrer. Similarly, if a sales network commission is paid, it would be to the sponsor. If you were to use the Unilevel plan, the "referrer" would be the same as the "sponsor".

2. If you need to approve or process a manual payment for an order, just head to the Transaction history page in the Admin CP and click the proof of payment icon (see picture). You'll see a pop-up when you can approve the order. Changing the payment status manually won't generate a commission.
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Regards,