Here you go. It doesn't have the readme.txt, that was just too much.
Read Me
Edit the index.php file and change the password to suit,
Add the content you want to have protected in the correct section which is fully marked. This can be the entire page or a link to the page or folder you want protected.
Upload the file to your web server and then point your browser to the uploaded file and try it out.
Hope that helps.