I have gotten a lot of emails latly asking me how to install the mod. I had thought that this would be easy to figure out, apparently I was wrong.
You have to install the game obviously and then update it to version 1.09. Then place the unzipped files into the appropriate directory based on what version of windows your running.
In Windows XP you go to My Documents\Command & Conquer 3 Tiberium Wars\mods and unzip the mod into this directory.
In Vista go to C:\Users\"Your name here"\AppData\Roaming\Command&Conquer 3 Tiberian Wars\Mods and unzip the mod into this directory.
I believe windows 7 works the same way as Vista.
Finally go to the CnC3 Tiberium Wars Control Center and run it. Then click Game Browser, Mods and pick the Xenoforce Mod. That's it.