I have made a Support Request in mediatemple and they can't help. I asked if they can sell to me an dedicated IP and answer this:
Due to the distributed nature of our Grid service hosting platform, you would not be able to receive a dedicated IP. Each Grid service comes with its own access domain that allows you to access your sites without having a domain name pointed to your Grid service. Access domains are especially helpful when you're developing a new site or testing an existing site before re-pointing your DNS. Despite not having a dedicated IP address, your Grid service is still capable of hosting sites that use SSL.
For more information on using SSL certificates with the (gs) Grid-Service, please see the following FAQ page:
For more information on our access domains, please visit this KnowledgeBase article: