disintegration

Hi im asking for some help i would like to now how to do this http://www.youtube.com/watch?v=mh1O-X82EKk in blender 2.5 it is giving me a hard time i am trying to get the disintegration that you see in the first part of this video thanks

what part of it is exactly giving you a problem?

ok i know in 2.49 in the materials section you use the color ramp to set witch direction the particles disintegrate from then go to the map to section and set it up there but in 2.5 i dont see the map to section and that is the part that gets me

Map to is the check boxes under Influence in the texture panel.

sorry to say but i dont see it has the name changed