I don't know if I'm saying the same thing or answering the question, but there is a "more" link in the smilies box. That will open another window with more smilies in it.
Unfortunately, those don't work for me -- I just get the text and not the image in my post.
Like this:
Wierd thing is that I've seen them work for others.
ETA - And now it worked for me. *Sigh* Sorry to bother!