I was having a bit of trouble fitting mine using the instructions supplied in the box, just could not get them fitted without rubbing. It was only after watching the video above that I got them properly fitted.
I would also advise using electrical table to protect the forks and seat-stays where the mudguard "feet" meet the frame, as without doing this you will likely end up with fine scratching to the paintwork due to the slight movement/flex in these mudguards - it happened to me after 1 x 50 mile ride along country roads in the wet.