Argh....must have inadvertently deleted that when I was doing some cleaning up of old files on the server...sorry about that!
Basically though, it's very simple. On the page where you post a reply or new message, look to the right of the text area where it says Emoticons. Click "View All" and a pop up window will come up that shows all the current emoticons you can add in a post. You just need to click inside the text area where you want the emoticon to appear and then you can click on the emoticon itself in the pop up window and it will insert the text code for the emoticon. Each one has its own text code...once you hit submit, you'll see the graphic image instead of the code. Once you've learned the code for some of your favorite emoticons, you can just type the code directly into your posts instead of opening the pop up window.
There is a maximum 5 emoticons per post limit.