I just got my Phantom 2 v2 today. I went to DJI.com and got a bit confused. I saw software assistant downloads, but there are 2different ones, plus another 2 for something else. What are all of these for? How do I know which one is for my Phantom? http://www.dji.com/product/phantom-2/download (I have Windows 7, so I am just looking at the 4 downloads under "Assistant downloads and driver") I want to calibrate the controller first, then load the firmware into the Phantom 2. Once it do a few test flights, then install the gimbal. Thanks !