Great plugin !!!
When dealing with the image manager (Meta box) - it only gives images from certain size - not all images (taking it probably from the height_width on the "post attached image".
It will probably be much better to use wordpress regular image manager to choose the slider image.
I tried to hack add_meta.php to give me all images sizes, still no luck ... ( I need it to give me also the "full-size images" )
Any idea ?