wp_list_pages function get parent and list children

I’m currently setting a static parent name and dynamically retrieving the children pages, but what I would like to be able to use title_li to gather the parent name from WP instead of using title_li=PARENTNAME. I’m using this for my main page, which has 5 menu headings, for example:

<?php wp_list_pages(“title_li=Programs&child_of=26”); ?>
<?php wp_list_pages(“title_li=Faculty&child_of=18”); ?>
<?php wp_list_pages(“title_li=Students&child_of=30”); ?>

Where you see Programs, Facutly, and Students, I have the exact same names in wordpress, so I would like to be able to make use of this incase someone decides to change the parent name–preventing them from directly editing the code. If they change the name of the parent in WP, the name will change here.

URL: http://itec.cbu.ca/cm/

This site is nothing but a class assignment, so I slacked off and blasted a bunch of tables into the code to save time. I appreciate any help that someone can give me. Thanks in advance!

PS: I’m using WP 2.1.1