Can anyone point me to a resource to help me install PHP 4 (that's what my ISP's server runs) on a Windows XP Pro machine? I tried last year and got hopelessly lost!

I'm trying to develop a PHP Web site on my local machine. I don't think I'll need to install MySQL at this time, at least, but will I need to install Apache as well? If so, same question: Can anyone help me find a painless way to install it?

Thanks!!