Going to DocBook 1.73

Hi !

I'm glad to see the new docbook xsl version, with very usefull
improvements ! congrats !

I especialy appreciate the id generation in html output.

So I immediatly try to use it but encounter some problems :

1/ in the book titlepage of pdf output (generated with fop 0.93), there
is no information displayed as before. For example I have : 

              <fo:block font-family="Helvetica" font-size="10pt">

                <xsl:value-of
select="bookinfo/authorgroup/corpauthor" />

              </fo:block>

but the author doesn't appear. Graphics and static texts appear but no
values like this one.

2/ in chunk output, my first page is empty, there is only the
navigation header and footer

3/ in html output, despite the abstract.notitle.enabled param, there is
still the "abstract" title... but maybe I have misunderstood the effect
of this parameter. Does it suppress a title we have given for the
abstract of does it suppress the "abstract" label automaticaly added
when there is no title ?

thanks in advance for your help !

Marie.