PowerDNN Customers have two control panels that they use.

HSPComplete - Used for managing billing and support

Plesk - Used for Hosting management.

If you are a PowerDNN customer on a shared hosting account, Plesk is integrated right into your HSPComplete control center.  To view your plesk control panel, click on the "SYSTEM" tab.

If you are a PowerDNN customer on a dedicated server, you will need to log into Plesk directly by going to:  https://YourServersIPAddress:8443 and loging in with the username "admin" and your password.
Please notice that url is HTTPS and that there is a :8443 after the IP address.