GIMP Plugin Registry

The Kaleidoscope plugin is one of my favorite plugins, as it's great fun for creating patterns. It seems that it has disappeared from the GIMP Plugin Registry though. I found it back on one of my older computers, and it seems it can still be found here:

http://registry-archive.fargonauten.de/plugin?id=5180

It works on Gimp 2.4.5. on Windows XP and Vista, so why has it disappeared?

However, I can't seem to make it work on Ubuntu 7.10. On Linux, do you dump the same .exe file into the plugin folder, or do you have to use another file? There doesn't seem to be a Linux-specific version available. :( Do I have to compile it myself? (if so, link to a tutorial please?)