This is how I did it. In my version [Version 1.4.3]. Go to the Admin area, Look for ‘Gallery‘ [for mine, it’s at the very bottom of the list]. Click and you’ll get a dropdown list including one called ‘Options’. Click on that and you’ll see a page that has a series of titles across the top -‘General Options’ ‘Thumbnails’, ‘Images’, ‘Gallery‘, ‘Effects’, ‘Watermark’ and ‘Slideshow’. Click on ‘Gallery‘ and on the page that comes up, you’ll see ‘Sort Thumbnails‘ and a series of options presented as radio buttons. I hope this is useful to the hard of understanding like myself!
