I have signed up with cacert.org and grabbed their root.crt and class3.crt. Next I want to create as CSR based off of those files, however, the radio option to select the root certs is not available. I'm assuming that this is what I need in order to pop it over to my server for openssh, vpn access, ftps access, et al. I'm terribly new to this key stuff, but I need to learn it in order to be a better admin.
For creating a CSR you don't need their CA certs. Just create a new request and set the "commonName" to your domain like www.mydomain.com. During this process you also create a private key by clicking "Generate a new key" on the subject Tab.
Export the resulting CSR and send it to CaCert.org. They will in return reply with a certificate. You can then use this cert and the previously created private key for your servers.
Alternatively, you may setup your own Test CA with XCA by following http://xca.sourceforge.net/xca-15.html and make yourself familiar with all this cert-request-key stuff before requesting an official cacert.org certificate.
Ah! I had it backwards then. Thank you very much for the answer!