This screen describes the different cAos repositories and allows you to choose one to augment the packages available on CDROM (if you are using the CDROM installation):
Which cAos network repository do you wish to install from?
=> 1. chilled - Package of the lowest known 'safe' versions (good for servers)
2. certified - Most recent packages which have gone through QA testing
3. crazy - This includes the newest untested packages. DEVELOPERS ONLY!!!
4. none - Just install using the packages on this CDROM
[1] >
Choose the default to be safe, or select a choice that serves your purposes best. After choosing you will return to the "Installation and Configuration menu".