ActionScript 2.0 :: Load Function Works Locally But Not On Webserver?

I finally finished my game and now whenever my game communicates with my php file/mysql database it fails when the file is being run off the server, but somehow it works fine when played locally.

Here is some sample code:

(This works locally, hence the full url for the load function. But it does not work on the server which I thought was strange.)

Code:
startupvars = new LoadVars();
startupvars.load("http://alexville.com/alexvillenetwork/startup.php");
startupvars.onLoad = function(success){
if(success){

[Code].....