Flash not reading the PHP files

[hott5hotj]

I have been trying to create an authentication system using PHP5+, MYSQL 5+ and APACHE2+ using Actionscript3. When I got the codes together my password and usernames would not check against the MYSQL database, so I tried changing the code to then just obtain the passwords straight from the PHP files. I was just trying something different as I had been tearing my hair out over this and to my surprise even this did not work. I am new to this so I might need some correcting, but I did not see any errors in this. Can you guys help me.
Also when I directly write php code to insert data into the MySQL database but when I run that code through actionscript it fails to work.

Thanks in advanced.

Here is my php codes:

---------logincheck------------------------------------------------------
[code=php]
<?php
session_start() ;
$username = $_POST['username'];
$password = $_POST['password'];

//in real life you will probably want to check whether the username/password exist in a database instead
if($username == "admin" && $password == "password") {
$_SESSION['loggedIn'] = true;
echo 'login=success' ;
}else{
echo 'login=failure' ;
}
?>
[/code]

-------------------------members php-------------------------------------------------------
[code=php]
<?php
session_start() ;
//check if the loggedIn session has been really set so that noone can access this page directly. If it is not set send him to login page
if(!isset($_SES SION['loggedIn'])){
header("Locatio n: login.html");
exit();

}
?><style type="text/css">
<!--
body {
background-color: #333333;
}
.style1 {
color: #FFFFCC;
font-weight: bold;
}
-->
</style>
<span class="style1">
Congratulations you are now in the upload area</span>
[/code]
-----------------------------------and finally the actionscript code just in case:--------------------------------------
[code=actionscri pt]
tError.autoSize = "right";

var lvSend:LoadVars = new LoadVars();
var lvReceive:LoadV ars = new LoadVars();

mcLogin.onRelea se = function() {
lvSend.username = tUsername.text;
lvSend.password = tPassword.text;
lvSend.sendAndL oad("logincheck .php", lvReceive, "POST");
};

lvReceive.onLoa d = function(succes s:Boolean) {
if (success) {
if (this.login == "success") {
getURL("members .php");
}else{
tError.text = "I'm sorry you did not enter valid login details";
}
} else {
trace("no reponse from server");
}
};[/code]

[pbmods]

Heya, J.

What error message do you get from lvReceive.onLoa d (no response or invalid info)?