Here`s a few links that might help you out :

http://www.guitartricks.com/lesson.php?input=9272
http://www.guitartricks.com/lesson.php?input=8768
http://www.guitartricks.com/lesson.php?input=8769
http://www.guitartricks.com/lesson.php?input=9372
http://www.guitartricks.com/lesson.php?input=9373
http://www.guitartricks.com/lesson.php?input=1620