We have two different tutorials for Ubuntu:
You will need to install the package
apt-get install openvpn
Get the .ovpn configuration file from our site and put it into OpenVPN directory
Start the OpenVPN client using the .ovpn profile you need, for example
Now you are connected to VPN99.
Click the Network Manager icon.
Select Vpn Connections -> Configure VPN.
Choose the PPTP connection type.
In the Gateway field type in X.vpn99.net, then enter your Username and Password. Also choose Store the password for all users.
Almost done, click Close.
Click the Network Manager icon, select VPN Connections and choose VPN99.
VPN99 is now connected! Enjoy it!
To disconnect, just click the Network Manager icon,
select VPN Connections -> Disconnect VPN.