Make sure they are made for the figure you want to use them on.

Are the files just .jpg images? or are they .pz2 files?  I did a search in free stuff for "Ecstasy" and didn't find anyone by that name. So I couldn't look at the files for myself.

If they are just .jpg images you load your figure, then go to the material room. Make sure the figure is active, and in the drop down menu pick a body part.   Then right click in the material room window space, select  "New Node", "2D Image" and "Image Map".

Browse to the .jpg file that is the texture.

Connect the image map node to the first and third node.

Do that for each body part.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi