Thanks for your quick response.
I have defined the page in includes/extra_datafiles/gallery.php. I have followed a couple of different methods for creating this link (http://breathing-spring.com/creating-new-pages-for-zen-cart/) and none seem to work so I must be doing something wrong.
If you look at https://www.xrayfog.com now, the extra_datafiles code appears above the header. I'm a little perplexed.
As for the menu code, forgive my ignorance but do you mean the code for the header of the mainpage (includes/templates/template_default/common/tpl_header)? If so it is:
<!--bof-header logo and navigation display-->
<?php
if (!isset($flag_disable_header) || !$flag_disable_header) {
?>
<div id="headerWrapper">
<!--bof-navigation display-->
<div id="navMainWrapper">
<div id="navMain">
<ul class="back">
<li><?php echo '<a href="' . HTTP_SERVER . DIR_WS_CATALOG . '">'; ?><?php echo HEADER_TITLE_CATALOG; ?></a></li>
<?php if (DEFINE_GALLERY_STATUS <= 1) { ?>
<li><?php echo '<a href="' . zen_href_link(FILENAME_GALLERY, '', 'SSL') . '">' . Gallery . '</a>'; ?></li>
<?php } ?>
<?php if (DEFINE_CONTACT_US_STATUS <= 1) { ?>
<li><?php echo '<a href="' . zen_href_link(FILENAME_CONTACT_US, '', 'SSL') . '">' . BOX_INFORMATION_CONTACT . '</a>'; ?></li>
<?php } ?>
<?php if ($_SESSION['customer_id']) { ?>
<li><a href="<?php echo zen_href_link(FILENAME_LOGOFF, '', 'SSL'); ?>"><?php echo HEADER_TITLE_LOGOFF; ?></a></li>
<li><a href="<?php echo zen_href_link(FILENAME_ACCOUNT, '', 'SSL'); ?>"><?php echo HEADER_TITLE_MY_ACCOUNT; ?></a></li>
<?php
} else {
if (STORE_STATUS == '0') {
?>
<li><a href="<?php echo zen_href_link(FILENAME_LOGIN, '', 'SSL'); ?>"><?php echo HEADER_TITLE_LOGIN; ?></a></li>
<?php } } ?>
<?php if ($_SESSION['cart']->count_contents() != 0) { ?>
<li><a href="<?php echo zen_href_link(FILENAME_SHOPPING_CART, '', 'NONSSL'); ?>"><?php echo HEADER_TITLE_CART_CONTENTS; ?></a></li>
<li><a href="<?php echo zen_href_link(FILENAME_CHECKOUT_SHIPPING, '', 'SSL'); ?>"><?php echo HEADER_TITLE_CHECKOUT; ?></a></li>
<?php }?>
</ul>
</div>
<div id="navMainSearch"><?php require(DIR_WS_MODULES . 'sideboxes/search_header.php'); ?></div>
<br class="clearBoth" />
</div>
<!--eof-navigation display-->
