Sorted, my fault entirely, I hadn't uploaded the wrapper!
BTW this is brilliant, I've nominated it. :up::up::up:
But, I think it is a bit unclear that you need to put a URL in the image/flash field. Yes it's kind of obvious but I think it would be good to make the instructions very explicit.
Also it would be good if banners could be disabled/enabled in the list, without having to go into each banner's properties to do this.