Facebook Connect does not work

When i load the wp-admin section of the site.. my developer console shows the following error:

Uncaught ReferenceError: jQuery is not defined wdfb_facebook_login.js:50

The question is.. do i have to include jquery in wp-login.php? or is there another way?

When i click connect with facebook, it shows the facebook login window.. and when i log in, it disappears and throws the following error:

Uncaught TypeError: undefined is not a function