I've installed, and activated no problems. when I start scan I get a pop-up window with a list of page url's that it says it can't find.
The issue is that the address that it is showing are for pages that would be on the root directory, and I have this installation in a subdirectory.
i.e. it's looking here domainname.com/pagename.
where as the install is in domainname.com/wp/pagename.