This should do for now.
In the Quick Reply window -- the big square box at the bottom where you type your reply -- look to the left and you should see two links.
Show Forum Code -- pops open a window for reference.
Show Smilie List -- pops open a window for smilies. From this window you can click on the smilie and it'll add the code directly to the text box.
Please note, these two links need to pop open a window. So if you have a popup blocker on, well... I know for Google there is a way to allow certain popups through. I forget at the moment how to do it though.
Hope this helps.