ok, i have a mod for you for your users of wallpapers who use phpbb3 for their wallpaper websites. check it out, i have created a mod to make is so that if you have an attachement in your post, it will only be available for users or members who are logged in. this is what i did just edit these two file.

WARNING: DO NOT DELETE YOUR ORIGINAL FILES. JUST RENAME THEM. SO IN THE EVENT THIS DOESN'T WORK FOR YOU, YOU CAN ALWAYS GO BACK TO THE WAY IT WAS


language/en/vietopic.php

FIND:
'ATTACHMENT_FUNCTIONALITY_DISABLED' => 'The attachments feature has been disabled.',


ADD AFTER:
'ATTACHMENT_LOGIN_REQUIRED' => 'Please Login to Download Attachment',



download/file.php
FIND:
$user->setup('viewtopic');


ADD AFTER:
if ($user->data['user_id'] == ANONYMOUS)
{

trigger_error(login_box('', $user->lang['ATTACHMENT_LOGIN_REQUIRED']));
}





hope that helps