As we transition to the new Hyland Community, some post links may be temporarily disrupted as we finalize redirects. We apologize for the inconvenience and are working to resolve this as quickly as possible. Details.
As you have found, the default security settings on Win7 require SSL. You should be able to get online editing working by enabling SSL for the SharePoint protocol on Alfresco:http://docs.alfresco.com/4.0/index.jsp?topic=%2Fcom.alfresco.enterprise.doc%2Ftasks%2FSharePoint-HTTPS-setup.html