I apologize for needing more help, you would think I'm a newbie but I have a lot of experience with CS and other products and with CIVA, but I can't get the INS to work.  I changed the names of the files as suggested and the INS components show up in  the list of views>instrument panels, but not in Shift-1.  When I check the components in views the boxes open but they are black.  With power to the aircraft if I try the DNS-INS switch, nothing happens, it remains locked in DNS mode.  

Sorry to ask yet again but HELP!

Disregard my call for help!  I'm a total dufus.  A long time ago I had downloaded CIVA to FS9 and used it on that version of the CS 707, but didn't think to install it in FSX.  I have INS now.