the first one calls the site name and the meta-description content area:
<?php echo str_replace("[Site Name]",str_replace('"','"',$WAGLOBAL_Site_Name ), WA_getCMSContent($database_PowerStoreConnection, $PowerStoreConnection, "Home Page", "meta-description")); ?>
the second calls the site name and the meta-keywords content area:
<?php echo str_replace("[Site Name]",str_replace('"','"',$WAGLOBAL_Site_Name ), WA_getCMSContent($database_PowerStoreConnection, $PowerStoreConnection, "Home Page", "meta-keywords")); ?>
to set the meta tags, go to the content section of the Power Store admin, select a page and click the page optimization link.