|Being a noob you don't understand the risk to your system or those accessing it by what you propose.|
That article you referance is incorrect AND outdated. It was written for windows 3.1, 95 and nt. You are on xp. It mentions netbeui which is says has to be installed yet netbeui is not a routable protocol and it can not travel over the internet. Bet the writer didn't know the difference between netbios and netbeui.
You appear intent on this path of accessing shared drives via the internet. Certainly is one way of gaining an education though be it the hard way.
Hopefully you don't use your pc for banking, writing checks or you will find your life in hell due to identity theft.
Imagine the power if you knew how to internet search