For those who have been wondering where are the smileys and how do you make them appear, it's simple, you simply enter a smiley code in your text (which is usually very simple and self-explanatory). So the only thing you need to know is what are those codes.
Well, when you click on the "input formats" link below the text area of the comments/topics submission form it will show you a couple of radio boxes which present a choice between "normal" and "full html" input formats. What each allows is explained there. Below all that is a link that says "more information about formatting options" and leads to a page that nicely explains practically all you may want to know about writing your posts, including adding smileys to it.
The direct link to the smileys section is here: http://www.nuxified.org/filter/tips#filter-smileys-0
There you can see all smileys available including all the belonging smiley codes.
I am going to try to put a direct smileys link somewhere in a convenient place below the text area if no better solution is find, such are possibly clickable smileys sometime in the future.
I have added a few new smileys and more can be added as well. If you wish you can suggest some.