Set default sort order for newly-created albums.
Gallery3 currently sets all newly-created albums to sort by Date Uploaded in Ascending order. More often than not, users don't upload photos in any meaningful order, so this module was written to allow the site administrator to change the default sort order for all new albums created by both users and administrators.
The sort columns and orders available are exactly the same as the options Gallery3 gives you when editing an album.
This module may be downloaded from the codex here.
To install, extract the "default_sort" folder from the zip file into your Gallery 3 modules folder.
Afterwards log into your Gallery web site as an administrator and activate the module in the Admin -> Modules menu.
Configure the module: Settings -> Default sort. Save