css problem ?!

changed it without success on the testpage
but i made the step to change the major page, now there is a new problem
shadowbox is not working anylonger.
i copied all css files from nextcellent to my theme – but also without effect.
shadowbox was working on the testpage. not kidding ??

but sourcecode has included rel=”lightbox[set_307] and also the lightbox.js and css files in the header

edited:
does only not work when you are logged in to adminpanel in google chrome

so very thanks for your responses and patients – for me its working now – and has probably other problems when you move nextcellent to another folder (webspace) and expecting problems when you are logged in