Just put the utx files in the Texture folder and the int files in the System folder.

Also, some of what you see here, specifically the faces and jackets, are pretty much photos taken from the internet and edited in GIMP, so I feel that I can't really take credit for those portions other than the large amounts of photoshopping I did with them (e.g. fixed lighting on the faces and jackets to make them look better ingame, glasses and mostache on Cooper, and hair bangs on Naomi, Jennifer, and partly Ashley).