How to use:
You place the package file in your mods file not in a seperate file in your mods folder, otherwise it won't show up.
If you aren't familiar with the poseplayer in the link above ( were you download the poseplayer) there is an discription on how to use it in game.
Place the teleporters on the same place.
(You can also use the sibling pose with just a kid and a toddler, you don't use the eldest kid. Also you don't have to use the two running siblings in the family walk pose)