k3b is a CD-burner application (its on newer versions of Knoppix)

Linux does not write to NTFS filesystems. It can however, using captive-NTFS which is on the newest version of Knoppix. This is probably the trouble you are having. If the destination drive has a FAT32 partition, you should have no trouble copying files from one to the other.

You can resize and repartition hard drives using qtparted, but I';d avoid that in favor of cd-burning or coping the files directly.

Post specific error messages and perhaps we can tell you how to work around the problem.