e107+g2

Ok, so I figured while I was messing around with the plugin for e107, I might as well try my hand at upgrading it to work with G2.1. but, it's not quite working. It's returning a blank page, and I'm not sure why. can someone take a look?

<?php
/*
+---------------------------------------------------------------+
|	e107 website system Gallery2 Plugin 			    |
|	gallery2.php							    |
|										    |
|	Michael Brameld 2005-2006					    |
|	http://      							    |
|	  	   			                |
|										    |
|	Released under the terms and conditions of the	          |
|	GNU General Public License (http://gnu.org).		    |
+---------------------------------------------------------------+

*/
require_once("../../class2.php");
require_once(HEADERF);

$sql -> db_Select("gallery2Plugin", "*", "1");
list($id, $g2Uri, $embedUri, $loginredirect, $displaysidebar, $displaylogin) = $sql-> db_Fetch();

//If the user is logged in to e107, we want to pass his userid
//!!!!!!!!!!Comment out this if structure and just assign the 
//value 0 to $activeuser if you just want everyone to see the
//gallery as guest
if (USERID == 'USERID') {
  $activeuser = '0';
}
else {
  $activeuser = USERID;
}

/*if (!headers_sent()) {
     header('Content-Type: text/html; charset=UTF-8');
 }
*/

require_once($g2Uri . 'embed.php'); 
     	   $ret = GalleryEmbed::init(array( 
          'g2Uri' => $g2Uri, 
	  'embedUri' => $embedUri, 
          'loginRedirect' => $loginredirect, 
          'activeUserId' => $activeuser)); 
    
   if ($displaysidebar == 0) {
	GalleryCapabilities::set('showSidebar', false);
   }
   else {
   	GalleryCapabilities::set('showSidebar', true);
   } 
    
   if ($displaylogin == 0) {
	GalleryCapabilities::set('login' , false);
   }
   else {
   	GalleryCapabilities::set('login' , true);
   } 
  
    // handle the G2 request 
    $g2moddata = GalleryEmbed::handleRequest(); 
  
    // show error message if isDone is not defined 
    if (!isset($g2moddata['isDone'])) 
    { 
      echo 'isDone is not defined, something very bad must have happened.'; 
      exit; 
    } 
    
    // die if it was a binary data (image) request 
    if ($g2moddata['isDone']) 
    { 
      exit; /* uploads module does this too */ 
    } 
  
     if ($ret) 
     { 
       echo $ret->getAsHtml(); 
     } 

     echo $g2moddata['headHtml']; 
     echo $g2moddata['bodyHtml']; 

require_once(FOOTERF);


?>