i know this question must have been asked times over but pls i really need to know this.

if i have PHP+MYSQL+APACHE running on my Win XP Pro machine,

1. how can i make your machine(i mean your machine) see my webpage
when you type in my IP Address?

2. how can i make then address www.mysite.com return to my local
webpage?

basically i want to know how i can host a website on my local machine and have it seen on the internet.

thanks