As it happens, we were telling the truth! We do have a few closed beta keys -- in fact, we have several thousand. Visit our giveaway page to pick yours up, then go to the Black Prophecy site to register. Follow the registration instructions, verify your email, then check your email again for a download link. Once your account is active in Gamigo's account system, visit the Pilot Licensing Terminal (aka. beta page) to enter your beta key.
The final step is the easiest: Enjoy the Black Prophecy closed beta!