Unfortunately, they only really work in P5, P6, DAZ Studio or maybe some outside thing like Bryce/Vue (I am not sure about that one). You can sort of fudge it to some extent but you don't really get the glowing thing. I used to have a version for P4 but it had seams. For Hiro and Aiko it is possible to fudge with the bodystuits since they cover the full hands and you can set the ambient ability there. P4 you can make work but only if you composite two renders together. So it is vaquely usable in P4 if you work at it :) I can tell you how to do it a few ways but it isn't as simple as a MAT pose and there are some complications. I still like P4 for the usablility and speed factor but this is one thing P5/P6 does better.