Shifting from Joomla

[uniqu3]

There is no official converter and basically it depends on what kind of functionality you Joomla site has.
Converting template should be easy with a bit of html, css and smarty knowledge.

To do that all you need is HTML from your existing Joomla template, for example just copy sourcecode and convert it to a static html file, copy all attached stylesheets and javascript.
Then move on to creating cmsms template, you can find doc about it here http://docs.cmsmadesimple.org/layout/cr ... n-template and documentaiton about smarty can be found at http://www.smarty.net/docs/en/