PHP not working completly in a mod I'm making..

[toonysnn]

Alright I was working on a mod (Just started moments ago and I'm almost finished..) and when I use this, half the page doesn't show up when I'm trying to use $_GET to show part custom content (It's where I edit it in) and just use default headers/footers for two templates.

<?php 
// ####################### SET PHP ENVIRONMENT ########################### 
error_reporting(E_ALL & ~E_NOTICE); 
// #################### DEFINE IMPORTANT CONSTANTS ####################### 
define('NO_REGISTER_GLOBALS', 1); 
define('THIS_SCRIPT', 'test'); // change this depending on your filename 
// ################### PRE-CACHE TEMPLATES AND DATA ###################### 
// get special phrase groups 
$phrasegroups = array( 
); 
// get special data templates from the datastore 
$specialtemplates = array( 
     
); 
// pre-cache templates used by all actions 
$globaltemplates = array( 
    'vBideo_main', 
); 
// pre-cache templates used by specific actions 
$actiontemplates = array( 
); 
// ######################### REQUIRE BACK-END ############################ 
require_once('./global.php'); 
// ####################################################################### 
// ######################## START MAIN SCRIPT ############################ 
// ####################################################################### 
$navbits = array(); 
$navbits[$parent] = 'vBideos'; 
$navbits = construct_navbits($navbits); 
eval('$navbar = "' . fetch_template('navbar') . '";'); 
eval('print_output("' . fetch_template('vBideo_main') . '");'); 
?>
<?php
// Our Page
if($_GET ['video'] == "")
{
 echo "<table width=100%><tr><td>";
}
// Start Navagation.
if($_GET ['navagate'] == "")
{
 echo "<Table width=100% class=tborder border=0 cellspacing=1 cellpadding=6><tr><td class=tcat>Navagation</td></tr><tr><td class=alt2>&nbsp; &middot; &nbsp; <A HREF=vbideo.php?vid=1>Test Video</A></td></tr></table>";
}
// Start middle column.
// Comin' soon
 
// Finish the page
// Get the footer!
eval('print_output("' . fetch_template('vBideo_footer') . '");'); 
?>