1. Adds Movie support to xcGallery When posting AVI movies, it checks for THM file with the same name, to use as thumbnail for AVI file. If no THM file is found, predefined thumbnails are used.
2. Stores thumbnails under separate albums/thumbnails directory. Directory structure in thumbnails directory is the same as in albums directory.
NOTE! I am using this hack for a while but only in batch add mode in admin panel. I haven't tested it for user's posts.