docbook website, version.... 6?

I (finally) came round to using this.
Couple of comments, though I'd better define the version I'm using.

1. Schema

Autolayout.rng headed
<!--
  Website Autolayout DTD V2.5.0
  Part of the Website distribution
  http://sourceforge.net/projects/docbook/

  Please use the following formal public identifier to identify it:

  "-//Norman Walsh//DTD Website Autolayout V2.5.0//EN"

  For example: