$xoops_module_header should go between the head and /head tags. see this code snippet here
le="color: #000000"><?php <head> <meta http-equiv="content-type" content="text/html; charset=<{$xoops_charset}>" /> <meta http-equiv="content-language" content="<{$xoops_langcode}>" /> <meta name="robots" content="<{$xoops_meta_robots}>" /> <meta name="keywords" content="<{$xoops_meta_keywords}>" /> <meta name="description" content="<{$xoops_meta_description}>" /> <meta name="rating" content="<{$xoops_meta_rating}>" /> <meta name="author" content="<{$xoops_meta_author}>" /> <meta name="copyright" content="<{$xoops_meta_copyright}>" /> <meta name="generator" content="XOOPS" /> <title><{$xoops_sitename}> - <{$xoops_pagetitle}></title> <link href="<{$xoops_url}>/favicon.ico" rel="SHORTCUT ICON" /> <link rel="stylesheet" type="text/css" media="screen" href="<{$xoops_url}>/xoops.css" /> <link rel="stylesheet" type="text/css" media="screen" href="<{$xoops_themecss}>" /> <!-- RMV: added module header --> <{$xoops_module_header}> <script type="text/javascript"> <!-- <{$xoops_js}> //--> </script> </head> <body>
Count 8 lines up from body- you will see $xoops_module_header.
To Add To This FAQ..
FAQ: I've modified my theme, but why cant I see the changes?
if you follow all the steps.. you will definitely see the modified theme. (a bit extreme. though)
just doing step one.. & revisit the page/theme/template on your site.. maybe a click on the refresh button and the changes would show (most of the times).. and don't forget to turn the setting back to no.