For thread,
http://community.norton.com/norton/board/message?board.id=nis_feedback&thread.id=31195&jump=true
I was thinking of telling the poster that the tmp folders are OK to delete (they are supposed to be temporary and not build up in the first place). But I don't want to post right before going on vacation. And if he asks why the files keep building up, I don't have time to troubleshoot NIS 2006 LiveUpdate anyway.