Here is the video tutorial:
English instructions:
1)Go into Final Fantasy 8 folder, open the "textures" folder that you've added when installing Tonberry and create a new folder called "iconit" inside the folder named "ic";
2)Copy the .png file that Shunsq uploaded on the forum into "iconit" folder and name it "iconit_13";
3)Open the "tonberry" folder, located in Final Fantasy 8 folder. Inside there is a file named "hash1map.csv". Open it with Notepad; *
4)Copy all the codes that Shunsq uploaded but edit them, changing all the "iconit_" numbers in 13, and adding a "," as separator between the title and the codes;
5)Save the file and the mod should work fine.