Having a bit of of a hard time getting my head around which template to modify - or indeed whether it should be a new page/template altogether!
I'm looking create a new page design for several categories. A 'photos' category for example may point to a new page which has a scrolled list of thumbs.
I can create new CSS pages for each category , but where should I integrate the new php page? A different wp-comments.php or something new?