Re: can you setup it by a folder?
I do not know.
However, you could force your SimpleViewer gallery to be displayed by the Mobile Player in all browsers (whether Adobe Flash Player is installed and enabled or not) by setting the useFlash Embed Code Parameter to 'false' in your gallery's embedding code.
For example, in your existing gallery here: http://www.kookaburracreekretreat.com.au/gallery.html
... you would change:
simpleviewer.load("sv-container", "100%", "700", "222222", true, flashvars);
simpleviewer.load("sv-container", "100%", "700", "222222", false, flashvars);
In doing so, the gallery would initially display a grid of thumbnails with no main image in all browsers and on all devices.
If using svBuilder-Pro to create or edit your gallery, the 'Use Flash' option can be found in the 'Customize -> Embed Options' section.
SimpleViewer Support Team