how to set "hook location"?

[radiofranky]

Hi,
in the template no direct php code can be pasted. Therefore, you need to create a "plugin" if you want to execute a php script. But my question is how to figure out which hook location should I use?

For example, I want to add "total posts: total users:" to my header, above the logo img.

How do I do that?


Do I create a plugin and then? What hook location should I select? What happens if I can't find one just sounded right?

Thanks for the helps.

ob_start(); 
global $vbulletin, $db, $vbphrase; 
//Begin Forum Stats 
// forum stats start 
$numbersmembers = $db->query_first("SELECT COUNT(*) AS users,MAX(userid) AS max FROM " . TABLE_PREFIX . "user");
$numbermembers = number_format($numbersmembers['users']); 
$counter = $db->query_first("SELECT COUNT(postid) AS posts, COUNT(threadid) AS threads FROM " . TABLE_PREFIX . "post");
$totalposts=number_format($counter['posts']); 
$countthreads = $db->query_first("SELECT COUNT(*) AS threads FROM " . TABLE_PREFIX . "thread"); 
$totalthreads=number_format($countthreads['threads']); 
// forum stats end 

// total online start 
$datecut = TIMENOW - $vbulletin->options['cookietimeout']; 
$headerguests=$db->query_first("SELECT COUNT(*) AS count FROM " . TABLE_PREFIX . "session WHERE userid=0 AND lastactivity>$datecut");
$headerusers=$db->query_first("SELECT COUNT(DISTINCT(userid)) AS count FROM " . TABLE_PREFIX . "session WHERE " . TABLE_PREFIX . "session.userid>0 AND " . TABLE_PREFIX . "session.lastactivity>$datecut");
$headerguests=$headerguests[count]; 
$headerusers=$headerusers[count]; 
$totalonline=$headerguests+$headerusers; 
// total online end 

// get newest member name and userid start 
$getnewestmember=$db->query_first("SELECT userid, username FROM " . TABLE_PREFIX . "user WHERE userid=$numbersmembers[max]");
$newusername = $getnewestmember['username']; 
$newuserid = $getnewestmember['userid']; 
// get newest member name and userid end 

 //End Forum Status 
//SideBar - Begin forum Stats 
$sb_stats=' 
<table width="100%" align="center"> <tr> <td class="" align="left"> <div class="smallfont"> <strong>Number of Members: </strong> '.$numbermembers.'<br /> <strong>Total Threads: </strong>'. $totalthreads.'<br /> <strong>Total Posts: </strong>'. $totalposts.'<br /> <strong>Currently Online: </strong>'. $totalonline.'<br /> <br /> <strong>Newest Member:</strong> <a href="'.$vboptions[bburl].'/member.php?u='.$newuserid.'"><b>'.$newusername.'</b></a> </td> </tr> </table>'; 
//SideBar = End forum Status 
echo $sb_stats; 
$output=ob_get_contents(); 
ob_end_clean();