Not even the home page has little code. It's just all inside the en_home.asp file http://www.hexagora.com/en_home.asp this is the same page as http://www.hexagora.com/home.htm where it is called inside a frame <FRAME name=main marginWidth=0 marginHeight=0 src="home.asp" frameBorder=no noResize>
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Anyway that's another thread.
What kind of limited acces are you talking about. Do you want people to log-in or something. Because just putting an index.html file inside a map will not restrict it from 'intruders'.
You are better of with an htacces file. Just search Google for it.
Martin