Smiley's not being selectable ... there was already a post about this somewhere else. I went and did a search for it and copied/pasted my reply:
Well, I was playing around with it a bit, and I noticed that if you use it in combination with BBCode such as quote, code, list, etc, inserting a smilie will sometimes somehow erase everything in the textbox! (With no way to recover what you had just wrote). I thought it was related to my style (as I created this one from scratch). But to my dismay I went to phpBB and was able to get the same thing to happen on their forums!
So I figured it would be better if I just got rid of it.