I can't stop you from taking anything from this site and using it for your own purposes. Chances are that I will never find out if you do. BUT, if you do want to take photographs I would appreciate you at least let me know. If you could send me a copy (for example a magazine or link) of where you have used a photo that would be even better and best of all would be money :)
Of course, if you send money, you'll get a higher resolution image if required.
All the trekking maps are owned by the OS.