I just did this last night on a friend's machine to port files onto the new replacement (XP-home ed.)

The workgroup of the XP machine needs to be WORKGROUP.

Bring Knoppix up command line. knoppix24 2 or knoppix 26 2

Type sambastart<enter>

Answer the questions on what to share and the knoppix password.

Look in the network neighborhood on the XP machine. There will be a samba share in the neighborhood with the harddrives shared. You will need to log on as knoppix with whatever password you set.

Browse the drives and drag the files you want onto the XP machine.