while trying to figure out how the cauldron work, i have made a new effect for the fireball (the original looked kinda ugly to me), maybe some of you will like it
you can download it here :
http://www.megaupload.com/?d=LE528D6I
just put all the file inside the "C:\Program Files\Stardock Games\Elemental\Mods" folder
and here is the video
http://www.youtube.com/watch?v=O234zW9Dj_U