titlepage customization

Can't get the titlepage customization example from here:

http://www.sagehill.net/docbookxsl/TitlePagePrint.html#TitlepageTableLayout

working. Layout works fine, but it's not pulling through the elements  
at all, they are all empty e.g.

<xsl:apply-templates mode="book.titlepage.recto.auto.mode"  
select="bookinfo/title"/>

is always blank

Any ideas?

Thanks.

Damon