I've said before that the BL website is shockingly bad.
They should have one point of reference for each title. You look up, for example, Horus Rising and it should return listing for that Title with all the various format options listed underneath. Not 3 listings with multiple options under each one.
They should also organise series better so people know what the hell goes with what because at the moment I doubt anyone, even BL, has a Scooby doos about what goes with what without having to look up some reference sheet.