I received these connectors today and can happily confirm that 1-487526-4 is the correct housing, just in case anyone else is wanting to build a proper cable for the Color Pivot.
Figured that one out... seems like something with the interrupts is getting messed up if you set the jumpers wrong on the Pivot card and that is why the mouse won't move.
Now I got the card working together with the Asante and also modified the Asante panel:
Hey there! I was trying to do this the other day, and I could NOT get the Pivot IIsi and the MacCon to play nice together. I don't know if I had my jumpers set wrong, but I literally tried just about every configuration.
What are the jumper settings for the Pivot and what are the jumper settings for the MacCon that make them work together? Please let me know!!