Finally managed to get the thing fitted
I filed the forks down slightly where the crown race sits and wet n dried the race itself, it was still a tight fit, i didn't have any bloody tube to hit it down with & after an hour of trying to tap it down with a hammer & flat screwdriver, i found a spanner that fit around the race, sat it on top of the race & whacked it down a fair few times....five minutes later it was in place..woohooo!
Not a reccomended way of doing it but it did work
Thanks again to everyone who replied to this post its much appreciated