Link to PHP Page?

I manage a website, built with FP 2003, for a small nonprofit organization
that holds monthly meetings.

All the pages are HTML, with the exception of the meeting registration form,
which is PHP.

What is the best way to create the menu and link to the PHP page?

I can create the link using the FrontPage web bot, but that link seems to
break every time I modify the page. Would an "include" page with the menu,
in bot or CSS form, be more robust?

Is there any special trick to linking to a PHP page when using Frontpage?

Thanks in advance for any advice.

Alex