Hi,
Currently we have no templates available for the current 1.04 version. You can download a free electronics style template coded for 1.03 from
http://www.karzina.com/extend/templates/ The Blue Lightning template does not have any of the Ajax Add to cart functions added to it, you would need to do this yourself.
The best place to start learning about how karzina is templated would be to make a copy of the /catalog/template/default/ folder and rename it then start editing from there. You set the template to the renamed copy in the shop tab of settings.
Hope this helps,
-Dave