probleme beim installieren

############################################### 
## Mod Title: Don't delete admin 
## Mod Version: 1.0.0 
## Author: Rapid Dr3am, Antony Bailey, [email]antony_bailey@lycos.co.uk[/email], http://rapiddr3am.slackslash.net 
## Description: Prevents the deletion of an administrator. 
## Compatibility: 2.0.4 
## 
## Installation Level: Easy 
## Installation Time: 3 minutes.
## Files To Edit: admin_users.php 
## 
## Included Files: N/A
## 
## History: 
## None 
## 15 May, 2003: Project started.
## 
## Author Notes: 
## Created on request. 
## 
## Support: http://www.phpbbhacks.com/forums/viewforum.php?f=11 
## Copyright: ©2003 Rapid Dr3am 1.0.0 - Antony Bailey 
## 
############################################### 
## This MOD is only listed on phpBBHacks.com. If you downloaded this MOD somewhere else, then you might be 
## putting malicious code into your phpBB. 
############################################### 
## 
############################################### 
## This MOD is released under the GPL License. 
## This MOD can be freely used, but not distributed, without my permission. 
## Intellectual Property is retained by the MOD author(s) listed above. 
###############################################
# 
#-----[ OPEN ]------------------------------------------ 
#
admin_users.php
# 
#-----[ FIND ]------------------------------------------ 
#
        $user_allowavatar = ( !empty($HTTP_POST_VARS['user_allowavatar']) ) ? intval( $HTTP_POST_VARS['user_allowavatar'] ) : 0; 
# 
#-----[ AFTER, ADD ]------------------------------------------ 
#
// Begin no delete admin 
         $user_level = ( !empty($HTTP_POST_VARS['user_level']) ) ? intval( $HTTP_POST_VARS['user_level'] ) : 0; 
// END no delete admin
# 
#-----[ FIND ]------------------------------------------ 
#
               $sql = "DELETE FROM " . USERS_TABLE . " 
               WHERE user_id = $user_id"; 
            if( !$db->sql_query($sql) ) 
            { 
               message_die(GENERAL_ERROR, 'Could not delete user', '', __LINE__, __FILE__, $sql); 
            } 
# 
#-----[ REPLACE, WITH ]------------------------------------------ 
#
// BEGIN no delete admin
if( $this_userdata['user_level'] == ADMIN ) 
            { 
               message_die(GENERAL_ERROR, 'Does your admin know your doing this?'); 
            } 
           else 
               { 
            $sql = "DELETE FROM " . USERS_TABLE . " 
               WHERE user_id = $user_id"; 
            if( !$db->sql_query($sql) ) 
            { 
               message_die(GENERAL_ERROR, 'Could not delete user', '', __LINE__, __FILE__, $sql); 
            } 
            } 
// END no delete admin
# 
#-----[ SAVE/CLOSE ALL FILES ]------------------------------------------ 
# 
# EoM