RewriteEngine On
RewriteBase /photos/
RewriteRule ^organize/$ organize/index.php [L]
RewriteRule ^feed/?([_0-9a-z-]+)?/?$ ?format=rss&album=$1 [L]
RewriteRule ^([a-zA-Z0-9]+[^/])/([0-9]*)/?$ ?album=$1&img=$2 [L]