Thumbnail Slider is a navigation component that enables you to load a set of images,swf's or symbols from library,fed from an xml file ,through which you can scroll with the help of the arrows,or simply depending on the mouse position. Here are all known issues for Thumbnail Slider Pro V1. If you have any questions that you think we should discuss here please let us know.
Thumbnail Custom Navigation Buttons
Case the parameter arrowsControl is set to “click” or “rollOver” ,you can change the arrows by making your own symbols with the linkage id "sliderBackHorizontal" and "sliderForwardHorizontal" if the orientation is set to horizontal,and "sliderBackVertical" and "sliderForwardVertical" if orientation is set to vertical.
This information can be found inside the documentation file received together with the Thumbnail Slider Pro V1 component at the bottom of page number 3.