Trouble with Adding Image Upload to Existing Form - php

Question

I'm working on a classifieds I'm setting up for my site and I've found myself "Stuck" again.
I'm new to PHP but I'm working on developing a better mouse trap for the classifieds and the script I will provide below I have written entirely from scratch and it works. (uploads data to the DB) but when I add the if block starting with: if($_POST['Image 1'] != "") { the whole thing crashes. (I get a white screen with no error messages or anything).
Here's the full code for this page;
<?php
ob_start();
session_start();
require_once('z-mysql_ini.php');
require ('z-connect.php');
$mysql = new mysql();
if($_POST['Description'] != "") {
$TypeID = $_POST['TypeID'];
$FatherID = $_POST['fatherID'];
$Model = $_POST['Model'];
$Price = $_POST['Price'];
$Description = $_POST['Description'];
$Year = $_POST['Year'];
$VIN = $_POST['VIN'];
$Address = $_POST['Address'];
$City = $_POST['City'];
$State = $_POST['State'];
$ZIP = $_POST['ZIP'];
$Country = $_POST['Country'];
$Email = $_POST['Email'];
$Phone = $_POST['Phone'];
$InformOfUpdates = $_POST['Inform'];
}
$node = new sqlNode();
$node->table = sprintf("`tt_%s`", abs(intval($_POST['TypeID'])));
$node->push("int", "CategoryID", $FatherID);
$node->push("int", "MemberID", $_SESSION['memberID']);
$node->push("text", "Model", strtoupper($Model));
$node->push("int", "Price ($)", $Price);
$node->push("text", "Description", $Description);
$node->push("int", "Year", $Year);
$node->push("text", "VIN", $VIN);
$node->push("defined","PostDate","NOW()");
$node->push("text","Featured","yes");
$node->push("defined","ExpireDate","DATE_ADD(NOW(),INTERVAL 30 DAY)");
$node->push("text", "Address", $Address);
$node->push("text", "City", $City);
$node->push("text", "State/Province", $State);
$node->push("text", "ZIP/Postal", $ZIP);
$node->push("text", "Country", $Country);
//$node->push("text", "Email", $Email);
//$node->push("text", "Phone", $Phone);
$node->push("int", "Inform", $InformOfUpdates);
if(($result = $mysql->insert($node)) === false) {
echo mysql_error();
echo 'Unable to Insert Data';
} else {
$ListingID = mysql_insert_id();
}
if($_POST['Image 1'] != "") {
echo 'File Selected and Data set in DB';
} else{
echo 'No File Selcted but Data Inserted';
//header("Location:memberindex.php");
}
}
?>
If anyone could kindly show me what I'm doing wrong that's making the page crash, I'd be most appreciative as then I can move forward with re-implementing the image upload code that came with the classifieds, but I can't even get past this initial block of test code without the page dying (and not uploading to the DB.
Bottom line is if I take the following code off of the page entirely, the script will upload all of the variable data above into the DB but if I add this block of code the whole thing crashes.
if($_POST['Image 1'] != "") {
echo 'File Selected and Data set in DB';
} else{
echo 'No File Selcted but Data Inserted';
//header("Location:memberindex.php");
}