Can't renew self signed certificates

I have my local self-sgned cert that is set to expire in a few weeks and am getting notifications from my server to renew. When I go under the settings tab, I only have the option to look at my push certifications, not my SSL certs, etc. When I go under the push cert,and click manage, it takes me to Apple Push Certification Portal where I can revoke the certs, but nothing else.

I thought I remember having an easier time in 10.7. Bit of a novice here, so looking for some advice.

Thanks!