3
as pdaddict said, this is an issue with the theme you are using. To adjust, 1st enable the "Update module template .html files from themes/your theme/templates directory?" setting in "Administration Menu" -> "System" -> "Preferences" -> "General Settings" then edit /<yourtheme>/theme.html
In this file, this is the title line:
<title><{$xoops_sitename}> - <{$xoops_pagetitle}></title>
This line is 'description' meta tag:
<meta name="description" content="<{$xoops_meta_description}>" />
and this line is the 'keyword' meta tag:
<meta name="keywords" content="<{$xoops_meta_keywords}>" />
Re-order them properly and save the theme.html file. Once you have verified that the changes were applied properly, you can disable "Update module template .html files from themes/your theme/templates directory?"