Theme stopping Page ordering form working?

Hello, I am trying to re-order the navigational links on my website, and although i can see the pages re-order in the back-end – these changes are not publishing and showing the front end.

I am using the Coldstone theme – could it be something to do with `the way the menu is called in the header.php?

<div class="menu">
			<?php $menuClass = 'nav superfish';
			$primaryNav = '';
			if (function_exists('wp_nav_menu')) {
				$primaryNav = wp_nav_menu( array( 'theme_location' => 'primary-menu', 'container' => '', 'fallback_cb' => '', 'menu_class' => $menuClass, 'echo' => false ) );
			};
			if ($primaryNav == '') { ?>
				<ul class="<?php echo $menuClass; ?>">
					<?php if (get_option('coldstone_swap_navbar') == 'false') { ?>
						<?php if (get_option('coldstone_home_link') == 'on') { ?>
							<li <?php if (is_home()) echo('class="current_page_item"') ?>><a href="<?php bloginfo('url'); ?>"><?php _e('Home','ColdStone') ?></a></li>
						<?php }; ?>

						<?php show_page_menu($menuClass,false,false); ?>
					<?php } else { ?>
						<?php show_categories_menu($menuClass,false); ?>
					<?php } ?>
				</ul> <!-- end ul#nav -->
			<?php }
			else echo($primaryNav); ?>

        </div>

Any help would be massively appreciated ??

Sorry its the first time i’ve pasted code into a post – hope it did it right by clickign in the code button above…? sorry if not!!!