Too bad their website is not responding.
Orbital Sciences Awarded Air Force Contract, Financial Terms Not Disclosed
DULLES, Va. (AP) -- Orbital Sciences Corp., a maker of satellites and launch systems, said Wednesday it received a research and development contract from the Air Force to develop space launch designs.
Financial terms were not disclosed. An Orbital representative was not immediately available to comment.

No representative was available for comment, or questions?

Well most companies do not provide details of a contract, on the other hand, they could give some idea of what it cost.
It will be interesting to see what concepts. It might be something like Space Ship One and White Knight. A reusable lauch platform and a one-way-to-orbit vehicle.