RSSkyrimChildren.esm (Main file)This is a patch that allows you to use extra hair packs (such as ApachiiSkyHair) for your
RS Children Overhaul character. 


How to install:

You must first install RS Children Overhaul, with all the files you need. In your Data folder you should have:

RSSkyrimChildren.esm (Main file)
RSChildren - Complete.esp (Optional)
RS Children_V.esp (Optional)


The USKP version is also included for those who want it.

RSChildren_PatchUSKP.esp


Now, take the files from this mod and paste them in your data folder and 
replace the old files. Now when you start a new game all (or most of) the hairstyles from packs should be available.
Please note that only RSSkyrimChildren.esm is required for this mod to work, but if you already had some of the optional files in
your folder, then go ahead and replace them by the files included in this mod. It will allow you for example to change the haircuts from the children NPC.
 

Credits:
Ranaline - For creating RS Children Overhaul.
WGsniper - For telling me how to do use TES Edit.