Dear Markus,

I seem to be doing OK but I fail to find the way to tell wget where to save the downloads.

You say:

all you need to do is change to a directory that is mounted writable
Presumable this I ought to do from the konsole, and I write after the knoppix prompt, say:
/mnt/uba1
It replies:
bash: /mnt/uba1: is a directory

So the method used in DOS to place yourself in a directory fails here.

I have reviewed the manual you recommended but can't find how to tell wget where to save.

Regards
JM