I didn't do an additional one, as far as I remember. I just used everything over again, as it said I could and it was a last minute application (my guidance teacher at school had broken her wrist or something and was off for ages, not that she was the most efficient of people at the best of times).
If I can, I'll get hold of my friend Jen for you. She won one of the scholarships, so I'll ask her what she did for it.
I think it should basically be just like your previous one, but with total stress on things that show your language ability. Also, try to write it in an original way. I bet they have thousands of the things to look through.