[Admin]

Nice idea, and very simple to execute.

In sessions.php, under your admin folder, find

PHP Code:

$bbuserinfo['username']=iif ($loginusername=="","Unregistered",htmlspecialchars($loginusername)); 


Now. You have basically two options. One is to remove the Unregistered at all, so people will HAVE to enter a new username. If you want this, replace the above line with

PHP Code:

$bbuserinfo['username']=iif ($loginusername=="","",htmlspecialchars($loginusername)); 


and that's it.

If you still want to do the random number thing, you will need to replace

PHP Code:

if ($session['userid']==0) {
  $bbuserinfo = $session;
  $bbuserinfo['userid'] = 0;
  $bbuserinfo['username']=iif ($loginusername=="","Unregistered",htmlspecialchars($loginusername)); 


with

PHP Code:

if ($session['userid']==0) {
  $unreg = Unregistered;
  $unreg .= rand (1000,9999);
  $bbuserinfo = $session;
  $bbuserinfo['userid'] = 0;
  $bbuserinfo['username']=iif ($loginusername=="","$unreg",htmlspecialchars($loginusername));