I backed up a content db from our production MOSS 2007 farm and then I added to an existing web application to the recovery wss 3.0 farm. However after doing it, the root site from the new db's site collection has a different appearance: there is just plain html and none of the links will open.
Here is a picture of the problem:
What could be causing this?
EDIT: The following error is displayed while opening a list/library on a page:
It is an error to use a section registered as allowDefinition='MachineToApplication'beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS. (C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\template\layouts\web.config line 244)