DOCBOOK: Image on front page

Hi,
I'm producing a DocBook manual which is to be published to HTML and RTF.

I've got the manual written, and the publishing sorted, but I'm stuck on how
to place an image on the front page.

I've been able to insert my mediaobject into the bookinfo, but I don't think
my stylesheets display it.  Can anybody give me any advice on how this is
normally solved?  I'd rather not start dipping into DSSSL yet if I can avoid
it.

Thanks,

Ian Mayo