Download it

Download from here:

https://docs.google.com/leaf?id=0B8S7Si-yu3DoNGZkMDk0MWYtZjA2ZS00ODQ1LWI5NGItODYwMTMyOGQ5NWI3&hl=en_US

Then copy this .jar file into C:\Program Files\ArtOfIllusion\Plugins or wherever you installed art of illusion.

Now simply run art of illusion and you should see 'Elementary' in the tools menu.