PHP Includes not showing up on Multiples Detail Pages

I have a problem where I have a website that contains PHP includes.
Those includes also contain some db driven information from CMS Builder.

Now, for an example, if I go to the templated page
(Templated page example: http://www.nsbc.org/about2/eab_bio.php)
and add ?1, as in:
http://www.nsbc.org/about2/eab_bio.php?1
You can see everything perfectly well.
Pay special attention to the left hand navigation menu as well as the breadcrumb trail.

Now, when I go to another bio, such as:
http://www.nsbc.org/about2/eab_bio.php?2
The left hand nav disappears, as does a portion of the breadcrumb.

Now obviously this is using the same template.
And the PHP includes aren't causing any trouble when they aren't pulling information from elsewhere.

However, I need to fix this quirk and could really use some input.

Thanks!
Kim[url]