I have two things I would like to accomplish.  Could you help do this?
1) Change the URL of the login menu item.
2) Change the URL of the logout menu item.
What I have done so far:
-Searched the forums
-Examined the language file, template file, and theme.php file.
I'm pretty sure i might know where i need to make these changes, I'm just not sure as to what exact changes need to be made for this to work.
			
			
			
				Ok, let me make more sense.  I want to change the URL of the login/logout sys_menu items to differnet URLs.  How do I do this?
			
			
			
				you'll need to edit themes/yourtheme/theme.php
			
			
			
				I can't figure out what code needs to go where.
Here is my theme.php code:
define('THEME_HAS_RATING_GRAPHICS', 1); 
define('THEME_HAS_NAVBAR_GRAPHICS', 1);
define('THEME_IS_XHTML10_TRANSITIONAL',1);
$template_sys_menu_spacer='';
// HTML template for the category list
$template_cat_list = <<<EOT
<!-- BEGIN header -->
        <tr>
                <td class="tableh1" width="40%"><b>{CATEGORY}</b></td>
                <td class="tableh1" width="5%" align="center"><b>{ALBUMS}</b></td>
                <td class="tableh1" width="5%" align="center"><b>{PICTURES}</b></td>
                <td class="tableh1" width="40%"><b>{CATEGORY}</b></td>
                <td class="tableh1" width="5%" align="center"><b>{ALBUMS}</b></td>
                <td class="tableh1" width="5%" align="center"><b>{PICTURES}</b></td>
        </tr>
<!-- END header -->
<!-- BEGIN catrow_noalb -->
        <tr>
                <td class="tableh2" colspan="6"><table border="0"><tr><td>{CAT_THUMB} {DEBUG}</td><td><span class="catlink"><b>{CAT_TITLE}</b></span>{CAT_DESC}</td></tr></table></td>
        </tr>
<!-- END catrow_noalb -->
<!-- BEGIN catrow -->
                <td class="tableb"><table border="0"><tr><td>{CAT_THUMB}</td><td><span class="catlink"><b>{CAT_TITLE}</b></span>{CAT_DESC}</td></tr></table></td>
                <td class="tableb" align="center">{ALB_COUNT} {DEBUG}</td>
                <td class="tableb" align="center">{PIC_COUNT}</td>
<!-- END catrow -->
<!-- BEGIN catrow_blank -->
                <td class="tableb" align="center"></td>
                <td class="tableb" align="center">{DEBUG}</td>
                <td class="tableb" align="center"></td>
<!-- END catrow_blank -->
<!-- BEGIN footer -->
        <tr>
                <td colspan="6" class="tableh1" align="center"><span class="statlink"><b>{STATISTICS}</b></span></td>
        </tr>
<!-- END footer -->
<!-- BEGIN spacer -->
        <img src="images/spacer.gif" width="1" height="7" border="" alt="" /><br />
<!-- END spacer -->
EOT;
function theme_display_cat_list($breadcrumb, &$cat_data, $statistics)
{
	global $template_cat_list, $lang_cat_list;
	
	starttable('100%');
	
	if (count($cat_data) > 0) {
		$template = template_extract_block($template_cat_list, 'header');
		$params = array('{CATEGORY}' => $lang_cat_list['category'],
		'{ALBUMS}' => $lang_cat_list['albums'],
		'{PICTURES}' => $lang_cat_list['pictures'],
		);
		echo template_eval($template, $params);
	}
	
	$template_noabl = template_extract_block($template_cat_list, 'catrow_noalb');
	$template = template_extract_block($template_cat_list, 'catrow');
	$template_blank = template_extract_block($template_cat_list, 'catrow_blank');
	
	$count=0;
	$columnCount=2;
	echo "<tr>";    
    
	foreach($cat_data as $category) {
		$count++;    	
		if (count($category) == 3) {
			if ($count%$columnCount==0) {
				$params = array('{DEBUG}' => "");
				echo template_eval($template_blank, $params);
			}
			$params = array('{CAT_TITLE}' => $category[0],
								'{CAT_THUMB}' => $category['cat_thumb'],
								'{CAT_DESC}' => $category[1],
								'{DEBUG}' => ""
			);
			$count=0;
			echo template_eval($template_noabl, $params);
		} else {
			$params = array('{CAT_TITLE}' => $category[0],
								'{CAT_THUMB}' => $category['cat_thumb'],
								'{CAT_DESC}' => $category[1],
								'{CAT_ALBUMS}' => $category['cat_albums'],
								'{ALB_COUNT}' => $category[2],
								'{PIC_COUNT}' => $category[3],
								'{DEBUG}' => ""
			);
			echo template_eval($template, $params);
		}
		if ($count%$columnCount==0) {
			echo "</tr> <tr>";
		}
	}
	echo "</tr>";
    if ($statistics && count($cat_data) > 0) {
        $template = template_extract_block($template_cat_list, 'footer');
        $params = array('{STATISTICS}' => $statistics);
        echo template_eval($template, $params);
    }
    endtable();
    if (count($cat_data) > 0)
        echo template_extract_block($template_cat_list, 'spacer');
}
define('THEME_HAS_FILM_STRIP_GRAPHIC', 1); 
function theme_slideshow()
{
    global $CONFIG, $lang_display_image_php, $template_display_media;
    pageheader($lang_display_image_php['slideshow']);
    include "include/slideshow.inc.php";
    $start_slideshow = '<script language="JavaScript" type="text/JavaScript">runSlideShow()</script>';
    template_extract_block($template_display_media, 'img_desc', $start_slideshow);
    $params = array('{CELL_HEIGHT}' => $CONFIG['picture_width'] + 100,
        '{IMAGE}' => '<img src="' . $start_img . '" name="SlideShow" class="image" /><br />',
        '{ADMIN_MENU}' => '',
        );
    starttable();
    echo template_eval($template_display_media, $params);
    endtable();
    echo <<<EOT
<html>
<head>
<style type="text/css">
.style1 {
	text-align: center;
}
</style>
</head>
<div class="style1">
	<iframe name="I1" id="I1" src="http://mydpnet.com/photos/themes/fotogallery/musicsoundplayer.htm" style="height: 55px; width: 224px" scrolling="no" border="0" frameborder="0">
	Your browser does not support inline frames or is currently configured not to display inline frames.
	</iframe></div>
</html>
EOT;
    starttable();    echo <<<EOT
        <tr>
                <td align="center" class="navmenu" style="white-space: nowrap;">
                        <a href="javascript:endSlideShow()" class="navmenu">{$lang_display_image_php['stop_slideshow']}</a>
                </td>
        </tr>
EOT;
    endtable();
    pagefooter();
}
?>
I saw some login/logout functions in the sample theme.php, but when i tried to add them to my theme.php, an error would always result. 
			
			
			
				Copy// Function for creating a main menu (SYS_MENU or SUB_MENU)
function theme_main_menu($which)
{
    global $AUTHORIZED, $CONFIG, $album, $actual_cat, $cat, $REFERER;
    global $lang_main_menu, $template_sys_menu, $template_sub_menu;
    static $sys_menu = '', $sub_menu = '';
    if ($$which != '') {
        return $$which;
    }
    $album_l = isset($album) ? "?album=$album" : '';
    $cat_l = (isset($actual_cat))? "?cat=$actual_cat" : (isset($cat) ? "?cat=$cat" : '');
    $cat_l2 = isset($cat) ? "&cat=$cat" : '';
    $my_gallery_id = FIRST_USER_CAT + USER_ID;
  if ($which == 'sys_menu' ) {
    if (USER_ID) {
        template_extract_block($template_sys_menu, 'login');
    } else {
        template_extract_block($template_sys_menu, 'logout');
        template_extract_block($template_sys_menu, 'my_profile');
    }
    if (!USER_IS_ADMIN) {
        template_extract_block($template_sys_menu, 'enter_admin_mode');
        template_extract_block($template_sys_menu, 'leave_admin_mode');
    } else {
        if (GALLERY_ADMIN_MODE) {
            template_extract_block($template_sys_menu, 'enter_admin_mode');
        } else {
            template_extract_block($template_sys_menu, 'leave_admin_mode');
        }
    }
    if (!USER_CAN_CREATE_ALBUMS) {
        template_extract_block($template_sys_menu, 'my_gallery');
    }
    if (USER_CAN_CREATE_ALBUMS) {
        template_extract_block($template_sys_menu, 'my_profile');
    }
    if (!USER_CAN_UPLOAD_PICTURES && !USER_CAN_CREATE_ALBUMS) {
        template_extract_block($template_sys_menu, 'upload_pic');
    }
    if (USER_ID || !$CONFIG['allow_user_registration']) {
        template_extract_block($template_sys_menu, 'register');
    }
    if (!USER_ID || !$CONFIG['allow_memberlist']) {
        template_extract_block($template_sys_menu, 'allow_memberlist');
    }
    if (!$CONFIG['display_faq']) {
        template_extract_block($template_sys_menu, 'faq');
    }
    $param = array(
        '{HOME_TGT}' => $CONFIG['home_target'],
        '{HOME_TITLE}' => $lang_main_menu['home_title'],
        '{HOME_LNK}' => $lang_main_menu['home_lnk'],
        '{MY_GAL_TGT}' => "index.php?cat=$my_gallery_id",
        '{MY_GAL_TITLE}' => $lang_main_menu['my_gal_title'],
        '{MY_GAL_LNK}' => $lang_main_menu['my_gal_lnk'],
        '{MEMBERLIST_TGT}' => "usermgr.php",
        '{MEMBERLIST_TITLE}' => $lang_main_menu['memberlist_title'],
        '{MEMBERLIST_LNK}' => $lang_main_menu['memberlist_lnk'],
        '{MY_PROF_TGT}' => "profile.php?op=edit_profile",
        '{MY_PROF_TITLE}' => $lang_main_menu['my_prof_title'],
        '{MY_PROF_LNK}' => $lang_main_menu['my_prof_lnk'],
        '{ADM_MODE_TGT}' => "mode.php?admin_mode=1&referer=$REFERER",
        '{ADM_MODE_TITLE}' => $lang_main_menu['adm_mode_title'],
        '{ADM_MODE_LNK}' => $lang_main_menu['adm_mode_lnk'],
        '{USR_MODE_TGT}' => "mode.php?admin_mode=0&referer=$REFERER",
        '{USR_MODE_TITLE}' => $lang_main_menu['usr_mode_title'],
        '{USR_MODE_LNK}' => $lang_main_menu['usr_mode_lnk'],
        '{UPL_PIC_TGT}' => "upload.php",
        '{UPL_PIC_TITLE}' => $lang_main_menu['upload_pic_title'],
        '{UPL_PIC_LNK}' => $lang_main_menu['upload_pic_lnk'],
        '{REGISTER_TGT}' => "register.php",
        '{REGISTER_TITLE}' => $lang_main_menu['register_title'],
        '{REGISTER_LNK}' => $lang_main_menu['register_lnk'],
        '{LOGIN_TGT}' => "login.php?referer=$REFERER",
        '{LOGIN_TITLE}' => $lang_main_menu['login_title'],
        '{LOGIN_LNK}' => $lang_main_menu['login_lnk'],
        '{LOGOUT_TGT}' => "logout.php?referer=$REFERER",
        '{LOGOUT_TITLE}' => $lang_main_menu['logout_title'],
        '{LOGOUT_LNK}' => $lang_main_menu['logout_lnk'] . " [" . stripslashes(USER_NAME) . "]",
        '{FAQ_TGT}' => "faq.php",
        '{FAQ_TITLE}' => $lang_main_menu['faq_title'],
        '{FAQ_LNK}' => $lang_main_menu['faq_lnk'],
        );
        $sys_menu = template_eval($template_sys_menu, $param);
  } else {
    if (!$CONFIG['custom_lnk_url']) {
        template_extract_block($template_sub_menu, 'custom_link');
    }
    $param = array(
        '{ALB_LIST_TGT}' => "index.php$cat_l",
        '{ALB_LIST_TITLE}' => $lang_main_menu['alb_list_title'],
        '{ALB_LIST_LNK}' => $lang_main_menu['alb_list_lnk'],
        '{CUSTOM_LNK_TGT}' => $CONFIG['custom_lnk_url'],
        '{CUSTOM_LNK_TITLE}' => $CONFIG['custom_lnk_name'],
        '{CUSTOM_LNK_LNK}' => $CONFIG['custom_lnk_name'],
        '{LASTUP_TGT}' => "thumbnails.php?album=lastup$cat_l2",
        '{LASTUP_TITLE}' => $lang_main_menu['lastup_title'],
        '{LASTUP_LNK}' => $lang_main_menu['lastup_lnk'],
        '{LASTCOM_TGT}' => "thumbnails.php?album=lastcom$cat_l2",
        '{LASTCOM_TITLE}' => $lang_main_menu['lastcom_title'],
        '{LASTCOM_LNK}' => $lang_main_menu['lastcom_lnk'],
        '{TOPN_TGT}' => "thumbnails.php?album=topn$cat_l2",
        '{TOPN_TITLE}' => $lang_main_menu['topn_title'],
        '{TOPN_LNK}' => $lang_main_menu['topn_lnk'],
        '{TOPRATED_TGT}' => "thumbnails.php?album=toprated$cat_l2",
        '{TOPRATED_TITLE}' => $lang_main_menu['toprated_title'],
        '{TOPRATED_LNK}' => $lang_main_menu['toprated_lnk'],
        '{FAV_TGT}' => "thumbnails.php?album=favpics",
        '{FAV_TITLE}' => $lang_main_menu['fav_title'],
        '{FAV_LNK}' => $lang_main_menu['fav_lnk'],
        '{SEARCH_TGT}' => "search.php",
        '{SEARCH_TITLE}' => $lang_main_menu['search_title'],
        '{SEARCH_LNK}' => $lang_main_menu['search_lnk'],
        );
    $sub_menu = template_eval($template_sub_menu, $param);
  }
    return $$which;
}
from themes/sample/theme.php into a new line before?> of themes/yourtheme/theme.php
Then edit the code you just added, find'{LOGIN_TGT}' => "login.php?referer=$REFERER",and'{LOGOUT_TGT}' => "logout.php?referer=$REFERER",and edit as you see fit. If this causes an error, post your changes.
			
			
			
				Perfect.  Just in case you were wondering why I wanted the login/logout ones specifically, I was integrating a CMS with coppermine.
			
			
			
				You should then rather come up with a bridge file - this takes care of logging in and out as well.