nav menu in BlueMasters

You'll need to modify the markup of the actual page--front and/or page.tpl.php file (i did both on mine). move all the code in that grid_7 to another div and change to grid_12. You might want to look into how grid systems work in general as this is pretty standard fare. See below how mine is changed to have the logo as the theme comes, moved the header region to the right of logo and moved the menu and its contents below it. You'll also need to modify the css a bit to remove the float: right from navigation and the ul inside it, but that's easy enough.

        <div id="header" class="clearfix container_12">
        	
            <div class="grid_5">
                <!--logo-floater-->
                <div id="logo-floater"> 
        			<?php if ($logo): ?>
                    <a href="<?php print check_url($front_page); ?>" title="<?php print t('Home'); ?>">
                    <img src="<?php print $logo; ?>" alt="<?php print t('Home'); ?>" />
                    </a>
                    <?php endif; ?>
                    
                    <?php if ($site_name || $site_slogan): ?>
                    <div class="clearfix">
        				<?php if ($site_name): ?>
                        <span id="site-name"><a href="<?php print check_url($front_page); ?>" title="<?php print t('Home'); ?>"><?php print $site_name; ?></a></span>
                        <?php endif; ?>
                        
                        <?php if ($site_slogan): ?>
                        <span id="slogan"><?php print $site_slogan; ?></span>
                        <?php endif; ?>
                    </div>
                    <?php endif; ?>
                </div> 
                <!--EOF:logo-floater-->
            </div>
            
            <div class="grid_7">
              <div id="header-right"><?php print render($page['header']); ?></div>
            </div>

            <div class="grid_12">
              <!--navigation-->
              <div id="navigation">
                  <?php if ($page['navigation']) :?>
                  <?php print drupal_render($page['navigation']); ?>
                  <?php else :
                  if (module_exists('i18n_menu')) {
                  $main_menu_tree = i18n_menu_translated_tree(variable_get('menu_main_links_source', 'main-menu'));
                  } else { $main_menu_tree = menu_tree(variable_get('menu_main_links_source', 'main-menu')); }
                  print drupal_render($main_menu_tree);
                  endif; ?>
              </div>
              <!--EOF:navigation-->
            </div>

        </div><!--EOF:header-->

I am removing issue tags used from one to four issues. I apologize for bumping the issue.