A. It is possible to explicitly define the UNC for the favourites folder for each user by editing the registry. The steps would be as follows

  1. Choose a server that will host the favourites (favorites for all you Americans :-) ) folder, and create a favourties folder on it
  2. Set the required permissions on the folder so that the users can read it (and add to it if you want that, probably not) and make sure it is shared
  3. Fill the folder with the required links etc.
  4. On the PDC edit each user entry and using the registry editor (regedit.exe), change the Favorites value in the "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" key to the path of the common favourties folder, e.g. \\pdcmain\favourites,then click OK