On the Minecraft Wiki there is a tutorial about creating an NPC village. I was wondering if the information was accurate because I have been unsuccessful in my attempts to create a village. I created two tiny houses, a copy of an L-house, and a church/ watchtower. I spawned in a testificate/NPC/villager in each building and at first they acted as they should (staying indoors at night and walking out at day). When I came back the next day however, they wandered away and no new testificates spawned. Does the fact that I am trying this in SMP have anything to do with it?