How to copy files to win partition hda1 ,hda5,hda6. It is however mounted. automatically. Also I am not even able to uploaad any files to the email in knoppix. Need help here............

if you have enough privileges (say root or some user that is in a group that has access) and the filesystem is mounted as read-write (not read-only), then it's just that you copy files from a partition and paste into another:

cp /source/path/* /destination/path/

if the windows partitions are mounted read-only (ro) or you're a normal user and have no privileges, or if the filesystem on the windows drive is not FAT32 but ntfs (for example), you'll probably run into problems. if you use ntfs filesystem, I guess you need a good guide to get files copied there or then just have to forget it