If my profile doesn’t have a chat page, how can I create one?
every Facebook profile has the chat feature. It sits in the bottom right of your Facebook page.
When minimized, it says Chat (1), with the number indicating how many of your friends are currently online. Click on it to open the list of your friends and double-click a name to start a chat session.
More information here: http://www.facebook.com/help/?topic=chatclient