O2 is unable to secure the legacy MMS application - utilised by poorly configure MMS capable phones, or non-MMS capable phones like the newly launched Iphone 3G - and has instead had to resort to shutting down the service.
Shortly after the INQUIRER posted news of public access to MMS messages indexed by Google, O2's legacy MMS service ceased to function.
Now if you attempt to go to any of the links indexed by Google (here), you will receive a standard Apache error.
Resorting to the root of the sub-domain will show the test page for Apache, viewable on a default install of the HTTP server software.
It seems plan B for O2 consists of resorting to the most desperate of measures. ยต