As of April 2013, Parallels has marked the Sitebuilder product as end of life, and is no longer licensing the product or supporting it.  

For our customers who have used Sitebuilder to build their websites, you may keep the current site online, however the sitebuilder utility is no longer functional and cannot be used to make modifications to the site.   Should you need to make modifications to your site, you will not be able to use Sitebuilder to do so, and cannot modify the existing sitebuilder created site files (which would violate related licensing agreements), and instead will need to rely on an alternate solution for your website design/developmente, some examples:

• use our new Web Presence Builder solution for easily building a website. details and demo here: http://www.3essentials.com/web-site-design.asp#top
• develop a site yourself based on any of the hosting platforms we support: html, ASP, PHP, and ASP.net
• engage a professional website designer to develop a site for you
• utilize a content management system (CMS) like Wordpress, DNN, or others.