IT'S 50 years ago this month that steam locomotives last ran in regular service on the main lines of  British Railways. For me these were days filled with nostalgia as I spent my gap year of 1967-68 travelling the country on railrovers trying to ride behind the last remnants of steam before it disappeared. Back then, neither I nor my transpotting friends would have reckoned in our wildest dreams that main line steam would still be with us – thanks ...more