View file upload/includes/xml/cssrollup_vbcms.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<css product="vbcms">
	<rollup name="cms-rollup.css">
		<template>lightbox.css</template>
		<template>postbit-lite.css</template>
		<template>postlist.css</template>
		<template>vbcms.css</template>
	</rollup>
</css>