This screen allows you to choose which repository to install cAos from:
Which cAos repository do you wish to install from? 1. chilled - Packages with the lowest known 'safe' version 2. certified - Most recent packages which have gone through QA testing >
Right now the best option to choose is "2" for "certified". The next prompt ask if you want to install the very newest packages:
Do you want access to packages in the crazy (untested) repository?  1. yes 2. no >
NOTE: "crazy" repository packages are untested and may not work. Go with the default here if you don't want the possibility of 'getting your hands dirty'. Also, if you choose to add the "crazy" repository to your '/etc/yum.conf' file at a later time, you need to keep the "certified" repository around. The "crazy" repository supplements the "certified" repository and does not replace it.