All three links are the same thing just hosted on different sites. After you download it you need to extract the entire zip file to the Root of your C: Drive. Install the Motorola Drivers included in the folder.
Put your phone into USB debugging mode and allow installation of applications for unknown sources, both of those are in your settings on your phone.
After that you plug your phone into your computer and put it on Charge Only mode load up the Utility press option 1 and follow the instructions.
It is going to tell you that you need to put your phone in AP Fastboot mode, to do this....
Power off your phone. Press and hold both the volume up and down and then press the power button. Once on the black screen with white text press the volume down to go to AP Fastboot and Volume up to select it.
That should get your started, let us know if you run into any other problems.