Ooh, interesting.
Can't download it though? It's just a web service?
I'm currently using version 08/2010 of code-point from here: https://www.ordnancesurvey.co.uk/opendatadownload/products.html
I managed to get the entire database in the end, using that wikileaks leak to fill any holes I had. The database is 100% complete as far as I know, so if anyone wants it to mess around with just let me know.