No, flights with Cathay do not count because Cathay is neither a Flying Blue partner nor a Skyteam member. (Cathay is a member of the OneWorld alliance.) Under these circumstances, a flight with Cathay would count only if it could be booked with an AF or KL code, but I am not aware that such ta cooperation exists between Cathay and AF/KL. (Actually, AF cooperates with Qantas on the HKG-MEL route.)