Regarding the copywright - The copywright protection is free and is effective the moment it is produced. be it writing/photo etc. Work is protected automatically from the time it is first written down or recorded in some way, provided it has resulted from its creator’s skill and effort and is not simply copied from another work.
You register things like, business names, patents etc and so on.
The © is applied by the creator, stating who they are, their name and date it was created, to the date it is now or whatever
anyway, that's just a basic over run from a trade law class I have..
someone correct me if i'm wrong as my memory is shonky at the best of times.
I would ask the site owner or whoever created the NS logo for permission before going ahead.