10.6.1, I think (pretty sure). Computer in question is at work, I'm at home.
They key answer, implicitly, is Mac. (10.6.1, really? 10.6.8 is current for 10.6, there are a lot of fixes...)
They should be in ~/Library/Preferences/Adobe InDesign/Version 7.0/locale/Workspaces
Yeah, it's kind of old (you know, if it ain't broke…). I think I feel an embarrasing brain f- - t setting in. Will have to check at work and get back.
OMG! Duh! Stupid!…
Just as I thought. That's actually the first place I checked but I had a bit of a numerical disconnect. I had two older versions of InDesign on my computer and saw two folders in my InDesign prefs and just naturally thought they were the old prefs -- and besides, the numbers didn't match -- I was looking for CS5 (not 7.0) and blew it off. Then I remembered I uninsalled one of the old versions, so naturally there were only two sets of prefs in the main folder, and yes, one of them was CS5 (7.0).
Sorry for the trouble. You guys are smart and need a laugh once in a while.