diff --git a/www/wot.php b/www/wot.php
index 5f36c90..e682358 100644
--- a/www/wot.php
+++ b/www/wot.php
@@ -26,6 +26,8 @@
 	if(array_key_exists('location',$_POST) && $_POST['location'] != "")
 		$_SESSION['_config']['location'] = $_POST['location'];
 
+	$oldid=array_key_exists('oldid',$_REQUEST)?intval($_REQUEST['oldid']):0;	
+
 	if($oldid == 12)
 	{
 		$id = $oldid;
@@ -41,11 +43,11 @@
 
 	if($oldid == 6 && intval($_SESSION['_config']['notarise']['id']) <= 0)
 	{
-		unset($oldid);
+		$oldid=0;
 		$id = 5;
 	}
 
-	if($oldid == 5 && $_POST['reminder'] != "")
+	if($oldid == 5 && array_key_exists('reminder',$_POST) && $_POST['reminder'] != "")
 	{
 		$body = "";
                 if($_POST['reminder-lang'] != "" && $_POST['reminder-lang'] != "en_AU")
@@ -80,7 +82,7 @@
 		$_SESSION['_config']['error'] = _("A reminder notice has been sent.");
 
 		$id = $oldid;
-		unset($oldid);
+		$oldid=0;
 	}
 
 	if($oldid == 5)
@@ -91,7 +93,7 @@
 		if(mysql_num_rows($res) != 1)
 		{
 			$id = $oldid;
-			unset($oldid);
+			$oldid=0;
 			$_SESSION['_config']['error'] = _("I'm sorry, there was no email matching what you entered in the system. Please double check your information.");
 			$_SESSION['_config']['noemailfound'] = 1;
 		} else {
@@ -101,7 +103,7 @@
 
 	if($oldid == 5 || $oldid == 6)
 	{
-		if($_REQUEST['cancel'] != "")
+		if(array_key_exists('cancel',$_REQUEST) && $_REQUEST['cancel'] != "")
 		{
 			header("location: wot.php");
 			exit;
@@ -110,7 +112,7 @@
 		if($_SESSION['_config']['notarise']['id'] == $_SESSION['profile']['id'])
 		{
 			$id = 5;
-			unset($oldid);
+			$oldid=0;
 			$_SESSION['_config']['error'] = _("You are never allowed to Assure yourself!");
 		}
 	}
@@ -124,7 +126,7 @@
 		if(mysql_num_rows($res) > 0 && $_SESSION['profile']['points'] < 200)
 		{
 			$id = 5;
-			unset($oldid);
+			$oldid=0;
 			$_SESSION['_config']['error'] = _("You are only allowed to Assure someone once!");
 		} elseif($oldid == 5) {
 			$id = 6;
@@ -153,17 +155,17 @@
 
 	if($oldid == 6)
 	{
-		if($_POST['assertion'] != 1 || $_POST['rules'] != 1)
+		if(!array_key_exists('assertion',$_POST) || $_POST['assertion'] != 1 || !array_key_exists('rules',$_POST) || $_POST['rules'] != 1)
 		{
 			$id = $oldid;
-			unset($oldid);
+			$oldid=0;
 			$_SESSION['_config']['error'] = _("You failed to check all boxes to validate your adherence to the rules and policies of CAcert");
 		}
 
 		if($_POST['certify'] != 1 && $_SESSION['profile']['ttpadmin'] != 1)
 		{
 			$id = $oldid;
-			unset($oldid);
+			$oldid=0;
 			$_SESSION['_config']['error'] = _("You failed to check all boxes to validate your adherence to the rules and policies of CAcert");
 		}
 	}
@@ -173,7 +175,7 @@
 		if($_POST['location'] == "")
 		{
 			$id = $oldid;
-			unset($oldid);
+			$oldid=0;
 			$_SESSION['_config']['error'] = _("You failed to enter a location of your meeting.");
 		}
 	}
@@ -187,7 +189,7 @@
 		if($_SESSION['_config']['wothash'] != md5($name."-".$row['dob']) || $_SESSION['_config']['wothash'] != $_REQUEST['pagehash'])
 		{
 			$id = $oldid;
-			unset($oldid);
+			$oldid=0;
 			$_SESSION['_config']['error'] = _("Race condition discovered, user altered details during assurance procedure. PLEASE MAKE SURE THE NEW DETAILS BELOW MATCH THE ID DOCUMENTS.");
 		}
 	}
@@ -195,7 +197,7 @@
 	if($oldid == 6 && $_REQUEST['points'] == "")
 	{
 		$id = $oldid;
-		unset($oldid);
+		$oldid=0;
 		$_SESSION['_config']['error'] = _("You must enter the number of points you wish to allocate to this person.");
 	}
 
@@ -269,7 +271,7 @@
 		if(mysql_num_rows($res) > 0)
 		{
                         $id = $oldid;
-                        unset($oldid);
+                        $oldid=0;
                         $_SESSION['_config']['error'] = _("Identical Assurance attempted, will not continue.");
 		}
 	}
@@ -426,7 +428,7 @@
 	{
 		if($_SESSION['_config']['pagehash'] != $_REQUEST['pageid'])
 		{
-			unset($oldid);
+			$oldid=0;
 			$id = 9;
 			$error = _("It looks like you were trying to contact multiple people, this isn't allowed due to data security reasons.");
 		} else {
@@ -453,7 +455,7 @@
 			}
 		}
 	} elseif($oldid == 9) {
-		unset($oldid);
+		$oldid=0;
 		$error = _("There was an error and I couldn't proceed");
 		$id = 9;
 	}