acrylian,
Sorry to bother you again but I still have an issue with headers. I have not touched PHP in a long time so perhaps this is just beyond my understanding. The headers issue is still a problem.
If I put that first cut of code
<?
define('ZENFOLDER', 'zp-core');
define('WEBPATH', 'gallery');
require_once(WEBPATH . "/" . ZENFOLDER . "/template-functions.php");
?>
into an existing page I still get Cannot modify header information - headers already sent by (output started