danthan... i think that you've gotta have a light emitting object with the following behavior in your scene, and set the light range so that it is greater than distance of the bumpmapped object...


var light_dist=80000;

action shader_light{
my.invisible=on;
my.passable=on;
while(1){
if vec_dist(my.x, camera.x)<light_dist{
my.light=on;
my.lightrange=60000;
my.red=255;
my.green=255;
my.blue=255;
}
else{
my.lightrange=0;
my.light=off;
my.cast=off;
}
wait(1);
}

just add this action to one a cube model, or any model you want to act as a light object... and place it in your scene near the object(s) you are using the bumpmapping shader on.

good luck
--Mike