Certain files on the site are in the .RAR format and will require WinRAR to extract them. Be sure to download the correct version depending on the version of your operating system (32 bit or 64 bit).
WinRAR 32Bit WinRAR 64Bit
TGA Explorer Viewers
These programs will allow you to view .TGA file thumbnails in your Windows Explorer, thus decreasing the time spent searching for files. Incredibly useful if you intend to create a UI or other similar mods. There are two programs, try either one, if one works then great, sometimes one won’t work yet the other will.