2 options as far as I can see.
1) The link to Digital pics needs to be in a secondary list like the other links so:
<?php wp_list_pages('title_li=<h2>' . __('Pages') . '</h2>' ); ?>
<li><ul><li><a href="/copper/">Digital Pics</a></li></ul></li>
should do the trick.
2) Create the page in WordPress. Probably simpler if you can get your Gallery code to work within a post.
