Default [Q] irulu x7 update

The manufacture for my tablet an irulu x7 running 4.4.2 posted an update that is a zip file containing PhoenixCard & and img file with instructions on how to use it to format the sd card. I followed all of the directions and it says that it finished. The SD card still appears to have no files in windows, when I put the sd card into my tablet and boot up it is supposed to automatically start the install of the new rom (don't have to go into recovery). Of course it does nothing and just boots up normally.

So is there something else I can do another program to get the img onto the SD card they way it should be, or another way to install the img file to the tablet. Any help would be greatly appreciated.