It's supposed to.
See my FAQ www.davidbartosik.com/faq.htm

To add to David's comments;

I belive the web page is created to meet the 640x480 screen setting.  The
greater the settings, the greater the space on the right.

If you go to David's Publisher web site, look at the FAQ list you will find
instructions how to "center" the display when using Publisher 2000.  The
drawback is you'll need to redo the instructions every time you update your
site.

Hi,  I am new to this discussion group but was interested in your problem.  I used Microsoft Publisher '98 to create a website and found it really easy.  However, when it was ready for uploading to the web I found just as you did that the whole format was off centre.  Have you managed to overcome this problem.  I didn't know how to access the replies.  Many thanks