Refer to the previous guide for instructions accessing the VPN Control Panel.
If your VPN panel is configured properly you will see a green button. Press on it like below:
The product page is displayed
Here you can access the download link for different devices shown in the top right hand corner:
Once the download finishes you will just need to run the executable to begin the installation on your device.
Click the orange "Instructions" button to download a usage guide to the VPN client.