I’m excited to announce Lightroom (v3.0) with Fill Edges for Panorama Merge, in-app learning and inspirational content, Connectors, Search Suggestions, enhancements to Custom Sort Order, advanced Export and more powerful GPU processing.
Click here to read this article.
In order to reorder images in the Library, view them in Grid view and then drag (in the thumbnail) and drop in order to reposition. This creates what’s called a Custom Sort order. However, Custom Sort orders depend on folder hierarchy. If a folder contains subfolders a custom sort order is not possible unless the option to “Include Items from Subfolders” is disabled (in which case you will only be able to see the photos in the targeted folder).