NMM highly raccomanded, just click on the big green button (download with manager) to install the mod.
If you like to do it manually, Un-zip and copy/paste the contents of the "data" folder in your skyrim Data directory.
Warning:
i won't add any BBP, TBBP or anything. I don't like that, sorry.
If you already have that kind of skeleton as your main game skeleton, you shouldn't have problems using armors with physics on her, btw you won't see physics on her when she's without armor.
Possible Issues:
Possible small neck seam on CBBE version due to face normal maps (EEO). It could be less or more visible depending on the ENB you are using