Sox, I tested the pack on ad-hoc and you can select the new tracks, but not the Mirage ship. Haven`t tried online yet.

I agree with you Frances, one wider issue of this is that game content is difficult to access for some people. Also the Playstation Store should clearly state that Mirage can`t be used in multiplayer. There`s some general disclaimer, but the people putting up the store information should give clearer information there.