Thanks for your help, I have now mannaged to gt it shifted..
rogerzilla, that is a very scary picture, I hope that you didn;t just take it for this tread, as that wouldbe very scary.
fixer, great website, and that trick worked, once I looked closely at the pictures and worked out how I was supposed to have enough slack chain.
But clearly i should get myself some spair chain for my chainwhip, and some sort of extender.