This blog started 2 years ago with an old good Raspberry Pi Model B. Since, models B+ and 2.0 were released, Raspbian evolves a lot and the Raspicam is now part of the “normal” environment.
I still receive a lot of technical questions on this blog, especially about difficulties to compile. I guess this blog is now depreciated with new OS versions and follow these steps could be difficult, especially for beginners or people who just want a ready-to-go solution. In this case, I recommend UVRL driver (here) or this spanish site that apparently is much more easy to use (I didn’t test them).
Have fun !