in admin section, If you acces something like /admin/jobs/administrators/
in $params you will find only nistrators (admin is stripped).

Also, if I already logged in as admin, and I go to: /admin/ the login form shows up... instead of homepage ....

A diff for these issues (This forum should have some attachment feature or code formatting - more than @code@):

Index: admin/index.php
===================================================================
--- admin/index.php (revision 1)
+++ admin/index.php (revision 4)
@@ -14,5 +14,4 @@
    }
    require_once 'config.php';
-   
    $page = (isset($_app_info['params'][0]) ? $db->real_escape_string($_app_info['params'][0]) : '');
    $id = (isset($_app_info['params'][1]) ? $db->real_escape_string($_app_info['params'][1]) : 0);
@@ -31,5 +30,14 @@
        // home
        case '':
-            require_once 'page_login.php';
+            #show login page only if the admin is not logged in
+            #else show homepage
+            if(!isset($_SESSION['AdminId']))
+            {
+                require_once 'page_login.php';           
+            }
+            else
+            {               
+                require_once 'page_home.php';
+            }
            $flag = 1;
            break;
Index: config.php
===================================================================
--- config.php (revision 3)
+++ config.php (revision 4)
@@ -120,5 +120,5 @@
    $smarty = new Smarty();
    $smarty->template_dir = APP_PATH . '_templates/';
-    $smarty->compile_dir = APP_PATH . '_templates/_cache/';
+    $smarty->compile_dir  = APP_PATH . '_templates/_cache/';
   
   
@@ -128,9 +128,13 @@
    // Split URL - get parameters
    $_app_info['params'] = array();
-    $_url = str_replace(_APP_MAIN_DIR, '', $_SERVER['REQUEST_URI']);
+        #_APP_MAIN_DIR can be found twice in $_SERVER['REQUEST_URI'], only first occurence needs to be replaced
+        #eg: /admin/jobs/administrators/
+    $_url = preg_replace('#'._APP_MAIN_DIR.'#', '', $_SERVER['REQUEST_URI'],1);
    $_tmp = explode('?', $_url);
    $_url = $_tmp[0];
+       
    if ($_url = explode('/', $_url))
    {
+               
        foreach ($_url as $tag)
        {