Two things come to mind.

If you downloaded the KN7000 version of the songs (a zip file) you could not play this throuhg your compuer. You would need to unzip this file to a floppy and then play the songs through your KN7000.

However if you just want to listen to the songs you can clck on any of the WMA version files at the bottom of the page (page 10) and your computer will play the songs using Windows Media Player.