Joomla 1 click install strange

Friends,
 
A customer installed Website builder (Joomla CMS) via 1 clicker.
 
HC only shows a link to http://www.website.com/cms where, if you login, theres nothing, everything blank.
 
see image: http://screencast.com/t/XSbTMhId0qsL
 
everything is blank... user has to KNOW that he has to use URL http://www.website.com/cms/administrator to log to Joomla admin.
 
This is not explained anywhere at all in the interface.
 
Pls improve?
 
Thanks.