I think I understand what you want.
Open Admin/index.php and find :
PHP Code:
<font size='1'>From here, you can control all aspects of your vBulletin forums.
Please select what you need from the links down the left hand side of this page.</font><p>
Add this either before of after it, or maybe replace the above text. With this code ::
PHP Code:
<?php
$datecut=time()-$cookietimeout;
$headerguests=$DB_site->query_first("SELECT COUNT(*) AS count FROM session WHERE userid=0 AND lastactivity>$datecut");
$headerusers=$DB_site->query_first("SELECT COUNT(DISTINCT(userid)) AS count FROM session WHERE session.userid>0 AND session.lastactivity>$datecut");
$headerguests=$headerguests[count];
$headerusers=$headerusers[count];
print("<align='center'>Guests Online: $headerguests[count]<br>");
print("<align='center'>Members Online: $headerusers[count] who are <br>");
?>
<?
$usernames = "on";
$path = "path/to/admin";
$cookievalue = mysql_query("SELECT value FROM setting WHERE varname = 'cookietimeout'") or die("oops1");
$cookietimeout = mysql_result($cookievalue, 0, 0);
$datecut = time()-$cookietimeout;
$invisibleregmember = "0";
if ($usernames == "on") {
$regmembers = mysql_query("SELECT DISTINCT username,invisible FROM user,session WHERE session.userid=user.userid AND session.lastactivity>$datecut AND invisible='0' ORDER BY username ASC") or die("oops2");
while($regmember = mysql_fetch_array($regmembers)):
++$regmembercomma;
if ($regmember[invisible] == 0) {
$regmemberson .= $regmember[username];
} else {
++$regmembercomma;
}
if ($regmembercomma < mysql_num_rows($regmembers)):
$regmemberson .= ", ";
endif;
endwhile;
} else {
$regmembers = mysql_query("SELECT DISTINCT COUNT(userid) AS membersonline FROM session WHERE userid>0 AND session.lastactivity>$datecut") or die("oops2");
while($members = mysql_fetch_array($regmembers)) {
$regmemberson = number_format($members[membersonline]);
}
}
$guests = mysql_query("SELECT COUNT(userid) AS guestsonline FROM session WHERE userid=0 AND session.lastactivity>$datecut") or die("oops3");
while($guest = mysql_fetch_array($guests)):
$guestson = number_format($guest[guestsonline]);
endwhile;
if ($bbuserinfo['userid']!=0) {
$username=$bbuserinfo['username'];
echo("<a href=\"../member.php?s=$session[sessionhash]&action=getinfo&userid=$bbuserinfo[userid]\"><b>$regmemberson</b></a><br>
}else{
echo("No members on-line");
}
?>
Save upload and Wow, this will allow you to see who is online and click them to see profile.. Also it will show how many guests online
Let me know if its okay.

been tested on my 2.26vb)