quistion

ok i want to make an aura for wod and i want to make light beams ( modeld ) shoot out of the gound and i was wondering how i could make the botomb realy thick and that the aura gous more and more transparent as it gous to the top | < transparant...

is there a newer version out i still got the version with 1 transformation is there a better one out ? plz tell me where i can download it sorry for the noobish quistion :(