Configure OpenVPN on Mandriva 2010.2?

Can someone please, please explain to me how to configure OpenVPN on Mandriva 2010.2?
I have received a static key and IP address from the company that provides the VPN service.

I have already installed OpenVPN on my server, so I “just” need help with the configuration.
Preferably a step-by-step guide. :blush:
I can give root-access if it feels right for me, so it can be fixed quicker. (Is a bit paranoid.) :shifty:

Thanks in advance…