Just been reading your first post on here. I dont think I would be worrying too much about the fact that a foal has yet to appear - "she THINKS that the stallion was removed at the end of Oct 2011". Your little girl is looking close to foaling and making normal progress, so I would take her last owners statement with a pinch of salt, and just wait (with patience LOL!!) for your experienced girl to produce her baby in her own good time.