PHP problem

I uploaded my website to Altersite but the PHP scripts are not running. I have enabled PHP5 using the PHP settings in the control panel.

This is the URL to my site: http://raymondzeng.altervista.org/

This it the PHP code used in the site:
<?php
$current="index.";
include 'header.php';
?>

I have uploaded the header.php file in the same folder as the index.html file.

Any ideas? Please help. Thanks!

[Gianluca]

Your website seems to work, please provide further details about your issue.

The url of my site is not working, and I do not know why!!
url: http://maistvonline.altervista.org
it only works if I type: http://maistvonline.altervista.org/joomla/
please help me ...
it worked when I created the site but do not know what happened to him now not giving.

[Gianluca]

If you type: http://maistvonline.altervista.org/ you are redirected to: http://maistvonline.altervista.org/joomla/