Install the "OpenVPN Connect" application from the AppStore.
Open iTunes on your computer, connect your iPad, tap iPad icon on top, tap on "Apps" and select "OpenVPN" app.
Drag-and-drop .ovpn and .cer files from downloads directory to "OpenVPN Documents".
Run "OpenVPN Connect" app, tap green icon with "+" sign right side of Trust.Zone profile name in order to import configuration you just copied.
Enter your Trust.Zone's VPN login credentials, toggle "Save" switch if you want to app to remember your credentials.
Tap "Connection" switch in order to init connection to Trust.Zone VPN.
You will see connection status during connection process.
If connection has been successfully established, "Status" will shown as "Connected".
You can manage your VPN connection with the "OpenVPN Connect" app.
Your IP: x.x.x.x · France · You are in TRUST.ZONE now! Your real location is hidden!