This was the first Mod I ever added. It was very easy. I simply uploaded the files and allowed them to overwrite the existing files. Simple. The only thing I had to do was make sure the smilie icons were uploaded in my forum directory without being in the folder they came in inside of the zipped download file.

Let me add new smilies with no hassle. Simple, easy and works! Didn't mess up my existing smilie table, either.