I checked it out with a lawyer and yes - all you people that have applied before 2008 and have the little brown Alien booklet but are still waiting for the yellow slip you have to start all over again!
Every piece of paper and document has to be re-admitted with your new application form. Apparently it's (as Bill said) because there is a new system in place and they can't be bothered to process all existing applications into the new system.
I have my appointment at the beginning of May so make your appointment quickly.