Thanks for that advice! I won't be posting any new panoramas for a while because I don't currently own a camera but will bear it in mind for the future. I used ICE for the image above and the Autostitch result was better as the ICE image curved downwards on the left side and it had to be cropped more than the one above in order to get rid of all the black bits. I'll need to fiddle around a bit and learn from trial and error.