Apache help

[poppasp1ce]

I'm using Apache 2.0.32 to set up a simple http server. For some reason people can not connect to the server, they get a Page Not Found error. I have the server on port 80 in the httpd.conf file. My router is forwarding port 80 to the server's ip and i can access the http server correctly from within the lan by the public ip, not the internal one assigned by the router (but that works too). The only thing I'm a little confused about is what to assign the ServerName(in the httpd.conf). I've tried 127.0.0.1, 192.168.1.102 (router assigned), and the public ip, no luck with any of them. I'm running on Windows 2000 Pro.