The picture transfer operation does not start by itself. After you have connected the micro-USB cable to your computer and the drive appears ready, you can open the drive, look under the folder DCIM and you should find the images you captured with the Kidizoom Action Cam.
Also, if you wish to download images to be viewed on the Kidizoom Action Cam, you can do so by moving the JPEG image files into the folder DOWNLOAD/PHOTO.KIDIZOOM.