ok, first download the plugin package, and then put everything that end up with the dll and avsi extension to your Avisynth plugin directory, if you see avs extension, simply change it to avsi and put those in too, this way it will auto load whenever you call it like a regular filter. If you see some files with multiple SSE version, choose only one, SSE2 for Pentium 4 or under, SSE3 for Core Duo.
Remember to download the AnimeIVTC script separately from
here to replace the original. And also, put the AvsRecursion.dll file to your C:\windows\system32 folder