WampServer

Hi I need help I can't really understand how to use this server, I installed it and when I type my ipadress I get into the server and I can change edit things in it and I can also get to my webpage, but I want to be able to use my own free Domain name like www.mysite.com in that form instead of an ip adress, also how can people from the internet have access to my website?? like when I put in my ip adress I could get control of the server and I can only access my website by getting in my server and clicking the file link, how can I make the webpage to get like a direct access, I want people to be able to access my webpage on my server but I don't want them having access with my server I want to password protect my server but not my webpage so people can access my webpage and see the content of it without having to log in as a user name.

you can either register a domain name and use dynamic dns service, or you can find a dynamic ip service that lets you use a subdomain which is free.