Knowing Knoppix wiki at http://en.wikibooks.org/wiki/Knowing_Knoppix
or downloadable pdf at http://www.pjls16812.pwp.blueyonder....pix/index.html. to save to disk do as with windows----- file-----save as (you can save in MS Windows format as well for documents .I don't know about other things --------then navigate up to the top directory where there'll be a list within which there should be the mnt diectory. Click on this and then select sda1 if you are using Knoppix 3.7 or uba1 if you are using Knoppix 3.8 or above-----then save and hopefully it should save to your disk. Another option would be to just name and save and then click on your usb stick icon as well as your home icon and drag and drop the file into your usb folder.