Hi Howard,
Copy the ZIP file attached to this post to your PC - for example to your Desktop.
Then, unzip the PRIVATE folder to your desktop.
Insert a BLANK SD Card in your SD Card reader or PC Card slot and COPY the PRIVATE folder to the SD Card. Remove the SD Card and insert it into your KN2600.
I know this procedure works because I have just tested it.
You must use a standard SD Card with a capacity of 1GB or less NOT SDHC or SDXC.