An AIC was issued on 6th February 2003 to provide airspace users with warning of the forthcoming airspace changes.
In addition, the AIP amendment was also issued on the 9th January 2003 which detailed ALL the changes taking place to the routes.
Both are available free online, both are no doubt widely available in clubs and briefing units throughout the UK.
Sorry to be contentious but someone ploughing through new airspace which has had 6 weeks notice (or more) through the legal channels speaks more about the pilots airmanship than a lack of promulgation. We're surely not a full nanny State yet I hope

Sometimes we have to take responsibility for our own actions and not blame the system.