So the question is does the hosting package you are using support PHP.
the phpinfo page that i sent is a very basic page, that contains only one line of php code:
<?php phpinfo(); ?>
that should return information about the PHP server. where that basic page is not working, i suspect a problem with the server configuration.
or it could be a problem with the way the file is being uploaded to the server.
try using a 3rd party ftp program like file zilla.