All. This problem appears to be fixed. After trying several sites over several different days of hacking at this, I found the following link on the apple site:
http://discussions.apple.com/thread.jspa?threadID=893646&tstart=1605
The first post lists some items including a "mv" command issued...
Hi. I am unable to successfully run software updates. Software Update finds updates, asks which I want to install. I check off one or more, it downloads them, and then gives this error message:
The update "{UPDATE_NAME}" could not be verified and expanded correctly. Make sure that you have...