Hi carrie wing,
You don't need to use any plugin to do this. I'll give you instructions on how to exclude pages through editing the codes:
1. Go to the theme directory and edit line 29 of header.php. Change dp_list_pages(); to wp_list_pages();
2. Add some parameters to wp_list_pages(). For example:
wp_list_pages('exclude=1,2,3');
where 1,2 and 3 are IDs of the pages that you want to exclude separated by comma.
For additional reference, refer to the link below:
http://codex.wordpress.org/Function_Reference/wp_list_pages#Exclude_Pages_from_List
To know the ID of the page, here's how:
* Log in to your WordPress admin console.
* Click on Pages link, to go to the Edit Pages page.
* You will see a list of all the pages with their names hyperlinked.
* Hover your mouse over the name of the page whose id you need.
* Keep an eye on your browser’s status bar.
* In the status bar, following the name of the page you will see something like “?action=edit&post=12″
* The number after “post=” is your page id. (12 in this example).
Hope this tutorial helps,
WPTD Webmaster