Get the installation CD ISO image from a mirror (http://www.caosity.org/index.php?option=com_mirror2&Itemid=84) or from here:
$ wget http://mirror.caosity.org/cAos-1/cinch/current/cinch.iso $ wget http://mirror.caosity.org/cAos-1/cinch/current/MD5SUMS $ grep iso MD5SUMS | md5sum -c
and the last line should output:
cinch.iso: OK
NOTE: some file downloading programs will not overwrite files by default (wget will put a numeric extension on the file). Make sure you do not already have copies of 'cinch.iso' and 'MD5SUMS' in the download directory.
Put the CD-R (or CD-RW) disk in the CD burning computer's drive and burn the image using software you are familiar with.