NPC's Addon Help

Im trying to add these NPC’s to my gameplay -

This is really annoying me, as you can see it clearly says 'Extract to the Garrysmod/Garrysmod/settings/npc_spawn folder… ’

i have done this and Its just not working !!!

Please Help me fix this and make them work
Thanks
Scott

p.s. I need it to play kill_breen (quite important)