But at the moment I have no idea just what it is...
Well, I found one problem - the idiot, excuse me, the person who wrote the mod hard coded the name of the smileys directory into the Subs.php script - a definite no-no in programming. You should NEVER do something like that! Particularly when you give people the option of deciding on their own what THEY want to call it!!
Let's see what changing that does...