Node JS website not working on internet

I am new to node js and express so I saw a tutorial online on how to use them:

http://ift.tt/1gTFwhB

I want to take that example and put it on my webserver so I can access it on the internet, right now it only works on localhost.

I searched and saw these questions and answers but I do not know where to put the code

NodeJS server not accessible from outside

Node.JS Not working on the internet

My webserver is iis8.5 ~ Thanks