Thanks, Paul.

I found this same question posed on a PC-based Word forum, and a respondent offered the following instructions for addressing this issue in Word 2007 (PC) http://bit.ly/mpkGUM

On the Office button menu, go to Prepare > Inspect Document. After inspecting the document, when the results panel shows up, click the button to remove all "Document Properties and Personal Information". Then save the document. The dates and times will be removed from all tracked changes, and the reviewer name will be changed to "Author".

This won't do if you're using custom document properties, because those would be removed at the same time.

After many hours of poking around, I discovered that you CAN suppress the date & time stamp from Track Changes--here's how to do it (in Word for Mac 2011, at any rate):

Go to "Word > Preferences > Personal Settings > Security > Privacy Options" and check "Remove personal information from this file on save" then save the document.

Voila! No more date or time stamp in Track Changes comments and edits in this document. This is positively Byzantine, but I'm glad the option exists!

Aden