your modem is at :
http://eciadsl.flashtux.org/modems.php?lang=en

But don't ask me how to enable them.
It's about during usbmonitoring during windoze session ,capturing the firmware. And afterwards combining it with their driver to upload the firmware with the regional settings of you local dsl provider.
It should work though . (but I'm not sure if it'll wotk with a knoppix bootcd)

Message to admins ,moderators and other linux freeks :
Does anybody has a script to automate the usage of this kind of dsl-usb modems under knoppix this would be very very nice.
The principle used to make the modem work ,should work for about 32 models of these usb dsl modems .

Greetzzzz,