Independent prims

This may be a pretty basic question but can anyone tell me how to make a linked object have prims that move independently?

Child prims in a linked set can be moved by llSetPos(), but instead of absolute coordinates the function takes coordinates relative to the root prim. llSetPos(<0.0, 0.0, 1.0>;
in a script on a child pim will move that prim one meter above the root prim (based on the root prim's idea of "above"... if the root prim is turned upside down then the above function would actually place the child prim one meter below the root.)

All this and more can be found at the LSL Wiki .