I created a dynamic album by searching for a tag and then saving the result. The URL for the album is of the form "index.php?album=tag-name.alb" and it displays fine. Images within the album, however, have URLs of form "index.php?album=tag-name&image=image.jpeg" with the ".alb" missing from the album name and therefore give 404.
I apologize if this has been asked before because it seems a very base-level problem but I promise I did search for an answer before asking. Thanks.
zenphoto 1.4.5.8, zpskeleton theme, on Dreamhost if that matters