As far as I have been able to understand it, what nruddock says above is correct. Older versions of Poser before P7 could not save any pose data for the BODY actor. Linking channels in the BODY to channels in the bodyMorphs actor via linkParms provided a way to save the state of FBMs to a pose file.

Quote - It seems there are Scaling Morphs connected both to the BODY actor and the bodyMorphs actor. The bodyMorphs actor itself is parented to the hip.

That sounds like someone made a mistake to me. I think that the Scaling Morphs should be connected to one or the other, but not both the BODY and the bodyMorphs actor. Still there is something strange here. If a channel in the BODY is connected to a channel in the bodyMorphs actor via linkParms, theoretically both channels should always have the same value. Changing the value in either one of the channels should result in the other channel assuming exactly the same value. At least that is my understanding of how linkParms is supposed to work.