bof wrote:

The 'original' is OK but can't get the 'amendments', 404 not found, any
other pointers?

From here there are links to three different versions of it, one PDF
and one MS Word at the top of the page and another PDF at the bottom.

http://www.odpm.gov.uk/stellent/groups/odpm_buildreg/documents/page/odpm_breg_033862.hcsp

HTH
--
Andy