that video assumes that you had watched the previous video on CSS icon's and CSP's. the process is the same, but the files in the download are not ALL you need for the setup to work. just the files you need to ADD to an already working BrawlEx setup.
i would need a little more info to help with the problem.
I did everything instructed in the video but when I went to view the end product there was no change so I decided to replace my files with the modified ones provided but it still did not work