[PlenoJure]

One small change I made to the showthread.php change, replace

PHP Code:

    require_once('./includes/functions_file.php');
    $inimaxattach = fetch_max_attachment_size(); 


with:

PHP Code:

    require_once('./includes/functions_file.php');
    $attachtypes = unserialize($datastore['attachmentcache']);
    $inimaxattach = fetch_max_attachment_size(); 


This will list the valid extentions instead of just displaying a blank space.