I have been following your very clear instructions but I've got stuck at

syslinux -s /dev/sda4


I get the following response

/dev/sda4: No such file or directory

Even though when I look at it in fdisk I get the following:

Disk /dev/sda: 1023 MB, 1023672320 bytes
64 heads, 32 sectors/track, 976 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes

Device Boot Start End Blocks Id System
/dev/sda4 * 1 976 999408 6 FAT16


Any ideas where I could have gone wrong? I am using Knoppix 5.1.1 on an IBM T40 Thinkpad