Standalone sample does nothing

It displays header "CKFinder - Sample - Standalone" and the text "CKFinder may be used in standalone mode inside any page, to create a repository manager with ease. You may define a custom JavaScript function to be called when an image is selected (double-clicked)."

Should it show anything else?

P.S.

I bought a licence for a site, but currently working at development computer with Apache running. Development key entered into config.php.