Zoomify for flash modifications

Has anyone had experience modifying zoomify for flash.

I'd like to modify the viewer so that the hotspot information appears only when it is selected from the hotspot list.

So no hotspot info (image or caption) appears at all until you select it from the list, then oviously disapears when you select another different hotspot form the list.

What Im looking for is some direction as to how to modify the viewer.as file.

I'm banking on someone having used and modified zoomify before with a bit of luck that someone will be in the flashkit community.

cheers