yes, it's called a line break, the code for a line break is;
<br />
add a br tab between the gallery code and the power cms code:
for example:
<?php
include('/home/armadaga/public_html/cms/WA_CMS/addtosite.php');
echo WA_getCMSContent($database_localhost, $localhost, '3.1 - Artists - Robert Lenkiewicz' , '3.1 - Artists - Robert Lenkiewicz');
?>
<?php
$pg_id = '1';
$pg_theme = 'light';
include('/home/armadaga/public_html/gallery/galleries/ribbon_fullsize_lightbox/index.php');
?>
<br />
<br />
<?php
include('/home/armadaga/public_html/cms/WA_CMS/addtosite.php');
echo WA_getCMSContent($database_localhost, $localhost, '3.2 - Artists - Derek Harris' , '3.2 - Artists - Derek Harris');
?>