The hacking is where you are modifying the camera to be controlled by the motion sensor on the board. When it senses motion, it tells the camera to take a picture. It usually involves taking the camera apart and soldering three small wires to the right contact points. The other end of the wires simply plug into the board. It really sounds harder than it is. Here is a pictorial tutorial for "hacking" or modifying a Sony P41. Look at it and that should give you some idea about the difficulty. All the rest of the build just consists mainly of drilling, painting, and finishing the case with the camo job you prefer. Hope this helps. http://www.snapshotsniper.com/ModP41.pdf

Blessings.....Pastorjim