After downloading the mod, use a program such as 7zip or WinRAR to extract the main folder of the mod.
Navigate to assets/mod_overrides. The assets folder is supposed to be in your game's installation folder (don't know where that is? click here). Create the folder if necessary
Move the main folder of the mod from step 1 to the folder you navigated to in step 2.
Included is an infamy_template file that can be used to make card images.
Files must be placed in custom_cards and named infamy_#.dds with # being 1-500.
If use random images is enabled place images in custom_cards/random.
Movie format requires RAD tools to convert into bik video and then renamed to a movie extension file.