Hi Mark,
OK, thanks so much for all your help last night on the phone (it surely saved me hours of frustrating efforts with HP documentation), and yes, the "color measurement" option is totally missing on my system when we are both in the same main drop down menu. While the differences between our systems might be the root cause as to why I don't have feature and you do, I think it's pretty lame to abandon already functional and useful features (like Apple does routinely with it's "latest and greatest" software updates, Pages 2009 versus Pages 2011, Aperture versus the castrated "Photos" software, Final Cut 9 versus final Cut 10, etc, etc.), particularly in this case when HP continues to sell this printer model with APS capability claims. Kind of like upgrading a new car purchase to leather seats, paying for it, and then getting vinyl upholstery instead.
In general, I'm very leery of downgrading computer systems to older OS's and older software versions. I will try to install your cited versions on another older computer, and see if indeed this resurrects the "color measurement" feature on that dialogue screen.
thanks,
MarM McC-G