NAT -LAST Question

Dear All,
i have the following question regarding the NAT Configuration.
as Every One Knows we have in NAT Terminology the following Terms :-
1- Inside Local Address, which is Private Network or which is MY LAN IP Address .
2- Inside Global Address, which is the legitimate IP Address assigned by the NIC Or the ISP Provider, which is the Real IP Address.
now, the 2 terms which i mention is used only in STATIC ,Dynamic , Overloading NAT.
Now, My question is :-
1- if i have this real IP Address assigned by my ISP, 64.202.88.20 , and i have an Internal WEB SERVER inside My Company and the WEB SITE is on it.
i want to make NAT to let all the People from out side access this Server through NAT it self by http. how can i wrote the IP NAT COMMAND ?
which one is the OUTSIDE LOCAL ADDRESS & which one is the OUTSIDE GLOBAL ADDRESS ?
Please Reply .

Thanks For your reply.
i have only 2 question here.
1- this will allow any one from OUTSIDE like internet, when he type in the Browser :-
( this IP is assign for example to this Domain www.FAS200.COM ).
http://www.fas200.com ,
the Request will come to this Router and there will be a translation from this Real IP address to this Internal IP Address, and the User will Not never know that there was a internal IP. is that correct ?
2- if i have my Exchange server, and i did the MX record to map to this IP, how the command is ?
3- what is the meaning of OUTSIDE LOCAL ADDRESS & OUTSIDE GLOBAL ADDRESS ?
please update me .

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                   in=new DataInputStream(socket.getInputStream());
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                       o=check_color(t);
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    import java.awt.*;
    import java.awt.event.*;
    import java.net.*;
    import java.io.* ;
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      JPanel B2[] = new JPanel[10] ;
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      JPanel sub_notice = new JPanel();
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        col_now = 0;
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