Seeker,

Why not do the following:

apt-get update
apt-cache search screensaver

You want to do the "apt-get update" to refresh what you currently have on your databases, stored on your Knoppix... And the "apt-cache search xxxxxxxx" will search those" packages for the occurance of "xxxxxxxx", or in the case of the above command, anything that contains "screensaver"....

Scroll through the output you get from the search, and when you decide on the "package" you want.... do a "apt-get install [packagename]"

It's a WAY COOL system, when you get used to it
Cuddles
BTW - I assume you have this "thingamasystem" installed on your hard drive? Running from the CD has some limitations.