What have you tried?
What do you intend to do with the data if you are successful in collecting it?
I think that if those (expletive deleted) cheap skates are going to claim that the camera is Arduino compatible, they should provide a library and sample sketches. Otherwise they are just lying cheats.
Totally agree. I have one of those, as I wanted to read single scan-lines for the camera, for machine vision purposes, but the thing grew horribly complex. I might give it another go some time, but for image processing I will probably prefer using the Raspberry, whose camera worked out of the box, command-line interface at the ready.
Luckily the camera was cheap. Still not worth its cost.