When you say "objects" do you mean the webpage?  If so, Publisher creates
webpages left justified.  Only Publisher 2000 and 2002 can be centered
justified and then it must be done manually in the html files, each time the
website is updated.

If you have Publisher 2000 or 2002 here's my canned response:
======================================
This works only for websites created with Publisher 2000 & 2002.

Each of your html files requires adding the <center> code after the existing
</head> code.

You can go into each html file and do it manually or get the free
ReplaceInfiles program
and make it an easy chore.

"ReplaceInFiles" can be downloaded from:

<http://www.emurasoft.com/index.htm>

The four boxes require the following information:

Find: </head>
Replace with: </head> <center>
File Types: *.html
In Folder:
(use the button to go to the folder where the html files are located on your
drive)

The bottom four boxes can be left blank.

Note: Once the boxes are filled out and the "Replace all" is selected, the
entries are retained for the next time you use the program.

Don
------
Vancouver, USA

P.S.  One of the kind visitors of this news group told us of ReplaceInfiles
program some time ago; 'Sorry I forgot the individual's name. (Another
unsung hero).

To get your information to the center go to File, Page setup.  Here you have
two options:  using Custom feature where you can change the width and height
of your webpage, or select webpage and change the width.  I use a width
1000px and height 4608px.  Changing the width will give you the ability to
center your page.  You can go wider if you need to.  To hold your information
on a published page, use tables and/or a single table box around
information/graphics/text boxes.  This will keep the format and embed
fonts/graphics/etc when you publish your page.  Hope this helps!