PHP problem.

I installed a PHP script in dreamhost. But the script doesn't work.
When I check the code from IE. I find that the index.php's code is the same as the one in my disk.
So what's the problem? It seems that the host can't explain the PHP script.

 

Try running PHP info on the site and see

<?php
phpinfo();
?>

PHP:

 

Does the script work locally?

 

When you go to that page , does it say save as a file ? else php is working but some problem in your script.

 

thanks, everyone.