Hi John,
Sorry my answer should have been phrased better.
The OP wanted both his partner and him to be able to make changes in their
website by editing the html files on their host. However, Publisher is not a
html code editor...you do not directly edit the web files (index.htm, the
index_files folder and all the *.htm and graphic files within it). If you
want to make changes in your website, you go back to the original Publisher
file (*.pub), make the changes, produce new html files/web files and upload
the new files to your host.
So the OP and his partner have to find a way to share the updated Publisher
file (*.pub)...not the web files (*.htm) produced by Publisher. As was
discussed they can simply email the Publisher file to each other after they
make changes, or as I suggested upload the Publisher file to their host
after they make changes. This Pub file can be stored on their site without
affecting the html files and be available to download by the OP or his
partner when they wanted to make changes. You would treat the Pub file
exactly how you would a PDF or perhaps a DOC file:
Including external files in a Publisher web:
http://msmvps.com/blogs/dbartosik/archive/2006/01/07/80561.aspx
I hope this is more clear...
DavidF