diff --git a/install/upgrade_1.4.0.php b/install/upgrade_1.4.0.php
index a5f8f38c6..615e0d4ec 100644
--- a/install/upgrade_1.4.0.php
+++ b/install/upgrade_1.4.0.php
@@ -287,6 +287,70 @@ foreach ($queries as $query)
   pwg_query($query);
 }
 
+// delete obsolete users table colums
+$queries = array(
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN status
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN nb_image_line
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN maxheight
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN language
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN nb_line_page
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN expand
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN template
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN maxwidth
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN show_nb_comments
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN recent_period
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  CHANGE COLUMN password password varchar(32) default NULL
+;"
+  );
+
+foreach ($queries as $query)
+{
+  $query = str_replace('phpwebgallery_', PREFIX_TABLE, $query);
+  pwg_query($query);
+}
+
 $infos = array();
 
 if ($prefix_thumbnail != 'TN-')
diff --git a/install/upgrade_1.4.1.php b/install/upgrade_1.4.1.php
index a5f8f38c6..615e0d4ec 100644
--- a/install/upgrade_1.4.1.php
+++ b/install/upgrade_1.4.1.php
@@ -287,6 +287,70 @@ foreach ($queries as $query)
   pwg_query($query);
 }
 
+// delete obsolete users table colums
+$queries = array(
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN status
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN nb_image_line
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN maxheight
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN language
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN nb_line_page
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN expand
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN template
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN maxwidth
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN show_nb_comments
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN recent_period
+;",
+
+  "
+ALTER TABLE phpwebgallery_users
+  CHANGE COLUMN password password varchar(32) default NULL
+;"
+  );
+
+foreach ($queries as $query)
+{
+  $query = str_replace('phpwebgallery_', PREFIX_TABLE, $query);
+  pwg_query($query);
+}
+
 $infos = array();
 
 if ($prefix_thumbnail != 'TN-')
diff --git a/install/upgrade_1.5.0.php b/install/upgrade_1.5.0.php
new file mode 100644
index 000000000..bdead1693
--- /dev/null
+++ b/install/upgrade_1.5.0.php
@@ -0,0 +1,89 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | PhpWebGallery - a PHP based picture gallery                           |
+// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
+// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
+// +-----------------------------------------------------------------------+
+// | branch        : BSF (Best So Far)
+// | file          : $RCSfile$
+// | last update   : $Date: 2005-10-23 23:02:21 +0200 (dim, 23 oct 2005) $
+// | last modifier : $Author: plg $
+// | revision      : $Revision: 911 $
+// +-----------------------------------------------------------------------+
+// | This program is free software; you can redistribute it and/or modify  |
+// | it under the terms of the GNU General Public License as published by  |
+// | the Free Software Foundation                                          |
+// |                                                                       |
+// | This program is distributed in the hope that it will be useful, but   |
+// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
+// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
+// | General Public License for more details.                              |
+// |                                                                       |
+// | You should have received a copy of the GNU General Public License     |
+// | along with this program; if not, write to the Free Software           |
+// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
+// | USA.                                                                  |
+// +-----------------------------------------------------------------------+
+
+if (!defined('PHPWG_ROOT_PATH'))
+{
+  die ('This page cannot be loaded directly, load upgrade.php');
+}
+else
+{
+  if (!defined('PHPWG_IN_UPGRADE') or !PHPWG_IN_UPGRADE)
+  {
+    die ('Hacking attempt!');
+  }
+}
+
+// depending on the way the 1.5.0 was installed (from scratch or by upgrade)
+// the database structure has small differences that should be corrected.
+
+$query = '
+ALTER TABLE phpwebgallery_users
+  CHANGE COLUMN password password varchar(32) default NULL
+;';
+
+pwg_query(
+  str_replace(
+    'phpwebgallery_',
+    PREFIX_TABLE,
+    $query
+    )
+  );
+
+$to_keep = array('id', 'username', 'password', 'mail_address');
+  
+$query = '
+DESC phpwebgallery_users
+;';
+
+$result =
+pwg_query(
+  str_replace(
+    'phpwebgallery_',
+    PREFIX_TABLE,
+    $query
+    )
+  );
+
+while ($row = mysql_fetch_array($result))
+{
+  if (!in_array($row['Field'], $to_keep))
+  {
+    $query = '
+ALTER TABLE phpwebgallery_users
+  DROP COLUMN '.$row['Field'].'
+;';
+    pwg_query(
+      str_replace(
+        'phpwebgallery_',
+        PREFIX_TABLE,
+        $query
+        )
+      );
+  }
+}
+
+?>
\ No newline at end of file