I am glad it is working for you guys!
I'm still pretty new here, and I can't seem to find any "Extra" folder. I searched the whole computer. Did you create this folder somewhere? I've download the plist files, but I'm not sure which step to take at this point. Do I overwrite my plist file with this one, or simply use it as a reference for changing the serial on my computer? So are their two locations for this plist?