i dont know if i mentioned this before but ive never done anything like this at all ever, so do you just put those files in that zip into the "support files" folder of the other one, or is there an executeable im supposed to use in there that does it for you?
1. Download and install Motorola Drivers on your PC
Download Here
2. Download the zip file
http://vulnfactory.org/public/motofail_windows.zip
3. Unzip all the files into one folder
4. Connect your phone to your PC via USB
5. Confirm USB debugging is enabled on your phone
a. Goto to Settings > Applications > Development > USB Debugging
6. In the folder where you unzipped the files, double-click the "run.bat" file
7. Follow the onscreen instructions, and let the program do the rest.
Process should take no more that 5 - 10 minutes.
Phone will reboot twice, to confirm that your phone is rooted, look for a new app called "SuperUser"
I would always advise you to backup your phone before doing this as a precaution, but if done right, you won't lose anything.
Hope this helps