I'm building a site where I've got images attached to pages. I'd like to be able to display thumbnails on respective pages, which I've got the code to make happen, but I want to have the first thumbnail actually be the medium-sized version of the image. In other words:
first image - medium-sized version
remaining images - thumbnail sized versions.
Any thoughts? I've seen documentation where people use an offset but that's been done when displaying images from posts, offset by a post.