mmk... i made a post about this a while ago... but the pics got deleted (i just copy/pasted from somewhere else, so i had no control over that...)
but basically... you have to take lots of cuttings... so top your plant lots to begin with, and keep it in a small pot.... you also have to trim the root ball every so often and replant with some new soil so that it keeps growing...
i'll find a better tutorial fo ya friend!