man...!! okay, I looked a little deeper, and that password is getting mailed in the adduser.php file... right near the end, you'll see this:
// -------------------------------------
// Now we need to mail them the password
if ( ($Username) && ($Email) ) {
$to = $Email;
$from = $config[emailaddy];
$subject = "$lang[PASS_SUB] $config[title]";
$msg = "$lang[PASS_BODY1] '$ip' $lang[PASS_BODY2] '$Username'. $lang[PASS_BODY3] '$pass'.";
$mailsend = mail("$to","$subject","$msg","From: $from");
it looks like it's using a native php function
mail... don't know what that defaults to... might want to check your PHP configuration...?
Anyone else have any ideas? (obviously, I'm not a big PHP-guru! []/testimages/icons/wink.gif[/])
Matt