Direcotry contains:
   
  Readme.txt
  HEADER.html
  Index.html
  AssistantList.php
  HeadersList.php
  IncludeHeader.php
  ModificationTime.php
  background.jpg
  smile.jpeg
  
  PHYSICS_ExercisesPool
  Template_Course
  Courses directories
  OLD stuff directoty
  

Creation of backup for Index files:
find -maxdepth 2 -mindepth 2 -ctime -60 -name Index.html -exec ls '{}' \; | awk -F "/" '{print "cp " $2"/Index.html " $2"/Index_2007B.html"}'