Missing plugin skins

Hi, I recently had some problems with True Launch Bar and had to reinstall. After reinstalling and downloading my plugins through the check for updates function, some plugins no longer had particular skins I used to use. The specific plugins I'm talking about are CD Control, Volume Control, and System Monitor. Why are some skins no longer packaged with these plugins?

Some of the old default skins can be found in the skins library

Thanks Yuri, found them. That must be where I originally got them from, and I simply forgot! #-o