Hello:
Knoppix minimum requirements are not very exaggerated, you can see them

http://www.knoppix.net/docs/index.php/FaqGeneral[/url]

But if you want to use kde you nedd a little more. Your system is old so youd cd-rom and hard disk are slow, but memory is so important and running X will be very, very slow with 32M, I suggest you trying other desktop than KDE, for example XFCE, it would work faster.