Simply drop this in your installation folder and run the .bat files to install and uninstall.

The mod is a simple replacement with files modified to contain the Evo versions of the battle and dialogue portraits, the event visuals (those images that sometimes appear in the game that take up the whole screen and are usually flashbacks) and the status images (the images you see when you open the menu to check a character's status) so all the .bat files do is rename the files to install/uninstall.