Script on all external pages to show user login not working

[Mac89]

I have a script in my header include that is displayed on all external pages. I am trying to display ' Welcome, Guest | Login or Register ' or 'Welcome back, User123 | Private Msgs (3) | Sign out'

This is the script:

<li>Welcome, <?

require("./forum/global.php"); //includes global.php

if (!$bbuserinfo[userid] || $bbuserinfo[usergroupid]==3 || $bbuserinfo[usergroupid]==4) { //code checks
show_nopermission();// permissions function

eval("dooutput(\"".gettemplate("error_wrongpassword")."\");"); // eval out sneds message
}

if ($bbuserinfo['userid']!=0) { // if user not logged in or not

$username=$bbuserinfo['username']; //if  logged in show username

echo"Welcome Back, <b>$username</b>"; //and welcome back username

} else  // show orginal header.

?>
 | <a href="#">Login</a> or <a href="#">Register</a></li>

It is not working when i load my file on my website i get this:

    * Welcome,
      Warning: require_once(/home2/bctwonet/public_html/includes/init.php) [function.require-once]: failed to open stream: No such file or directory in /home2/bctwonet/public_html/forum/global.php on line 20

      Fatal error: require_once() [function.require]: Failed opening required '/home2/bctwonet/public_html/includes/init.php' (include_path='.:/usr/lib64/php:/usr/lib/php') in /home2/bctwonet/public_html/forum/global.php on line 20

Now the include is in my main public html folder and my forums are under /forum/. The path to global.php is correct i am pulling my hair out has anyone had trouble with this before?