A Bug in 1.3.1

The plugin uses media uploaded to your WordPress site. I uploaded full sized images and selected full size to use in Slider Image, but they appeared as thumbnail sized. Tech support is lousy for the US as their time zone seems to be different by 8 or more hours, so expect one interaction per day. Their response to me was a continuous stream of, well stop uploading the thumbnail [you idiot]. On my test page, I included screen shots of what I did, showing that I selected the full size image, yet got a thumbnail.
Finally, they seem to admit that they have a bug and instructed me to download 1.3.0. But they did not provide a link to that version, nor can I find it on WordPress nor on their website.
I have wasted more than a week, been frustrated by their ignoring the information that I sent to them. I am taking it off today and will look for another plug-in, or use my own HTML5 slideshow that I have used prior to moving to WordPress.