hi there
i have endian installed and i primarily use it for Openvpn vpn functionality.....
please download the openvpn client from
http://openvpn.se/i would suggest you download Latest stable release: 1.0.3 with OpenVPN 2.0.9 as this has support for vista 64 bit too....
once done install it and read the client.ovpn file in notepad and its straight forward, once configured you should be able to connect, please let me know if you are facing problem and ill be happy to help...