The domains area in your Point2 account shows all domains registered through our domain store as well as domains pointing to your website. The domain names that were registered prior to November 8, 2004 were registered with Domain People and that is why it is not appearing to renew. We now use Wild West Domains and the domains purchased through Domain People will need to be renewed directly through them.
Here is a link to the Domain People website: http://www.domainpeople.com
It may also be that you registered the domain name through another domain provider. Feel free to do a whois lookup on your domain name to determine the registrar. When doing a whois lookup you'll want to search on the page for the registrar to determine the name of the company to contact to renew your domain name. A common whois lookup is: http://who.is