I've got the mbz file and want to restore it to a new course.
Log in as admin and click restore and ..... nothing, blank page, completely.
The URL of the page is http://mymoodleURL.co.uk/backup/restorefile.php?contextid=35
Incidentally, or perhaps not, I also get the same if I try to backup the same, empty, course. http://mymoodleURL.co.uk/backup/backup.php?id=4