I am runing zimbra 5.0.11 and my ssl cert expired

I have a primary domain with a subdomain. I was wondering if it is possible to install a UCC cert fromt from the Gui Admin Tools. I belive the the previous one was also a ucc cert. I am not the person that previous setup this server so i am a little lost. I have tryed to install the new certs that i was sent but it seams to defalt to a expired self signed one from Plesk

Any help or advice would be great thanks

Thanks.