Hi JOSLAC,
Did you ever have a sample video with your player? Wasn't a very helpful reply from Janice the supplier.
Try this URL here:
http://www.globalsources.com/gsol/Ge...FreeTextSearch
Global Sources is a great source of Chinese manufacturers. I did a search for "MJPEG" and that's the result. Hopefully if you look through those sites, they may have a "downloads" area where you can download the software. I've been look at some sites for you as well but haven't found anything, so will keep looking....