alright. here's what you need:
<ol><li><a href="http://www.kevindustries.com/media/kw/files/windows/lighttpd/">a server</a></li>
<li><a href="http://php.net/downloads.php">php</a>
</ol>
download and install them both
then you gotta do some other stuff... like configure lightly.
but this tutorial on for php
alright.
then make a page called "index.php" and put the following lines in the file:
<?php echo 'Hello World!'; ?>
then go to "http://localhost/" in your web browser.
you should see "Hello World!"
if not, its my fault. i just wrote this really broken tutorial.