Facebook Likes- quantity confusions

Hi guys,

When you visit Xenforo.com, you are familiar with facebook's 400+ Likes on right bottom (Share this Page) and you then visit facebook page, you see more than 2 thousand Likes. This is same problem to our forums site.

How can we fix to get same numbers of Likes without confusions, anyone know solutions? Other numbers of Google and Twitter are correct.
sigh, alright.

One more thing, when we log in our website- How to prevent timeout from logging out itself when you are away or idle? where can I change timeout system in ACP, we don't need to type all username/password over again?