Your SSL Manager page states "You will fill out the CSR information again, as you must use a new CSR to renew your SSL certificate. " Why? that's not a technical requirement of ssl certs; they can be re-issued multiple times with different validity dates, using the same CSR. Perhaps your interface should allow for editing / updating an existing installed cert, but I could not see such an option currently?
I'm not an expert on SSL Certificates, but I assume it's a security best practice to change the CSR every year.