Publisher works with .pub files and your website is probably .html files.
Once a Publisher file is created it can be saved as .html files but can't
open them. Editing is done by making changes with the .pub file, create the
html file and then replacing the old html file.
Don,
This is not entirely true.
Pub 2003 /7 does not need a dotPUB file at all and depending what you
save, the big file or the filtered file you can download it from the ISP
and edit the index.htm and index_files and return them to the ISP.
Of course the original must have been made with PUBLISHER to get it
back.
I should have qualified my answer that I drive the "Tin Lizzy" version of
Publisher, 2000. You Lamborghini drivers of 2007 are down the road and
around the corner from me.