[TECK]

another way of doing this could be:
forum/admin/config.php
add at the bottom:

// user can edit admins
$editadmin='1';

you can add as many users you want there...

forum/admin/user.php
find:

adminlog(iif($userid!=0,"user id = $userid",""));

below this add:

unset($editadmin);

find:

if ($HTTP_POST_VARS['action']=="doupdate") {

replace it with:

if ($HTTP_POST_VARS['action']=="doupdate" && checklogperms($editadmin,1,"<p>You are not allowed to edit this user.</p>")) {

let me know what you think.