Hello IrishDad--Welcome to SR. The sad, unfortunate thing is that there is little to nothing you can do to help your daughter until she wants to help herself. Not going after her when she runs away is a start. Setting boundaries with her is a good way to protect yourselves as well. You might try posting on the Friends and Family and Nar-anon boards and think about attending some Nar-anon or Al-anon meetings yourselves. You and your daughter are in my prayers.
Hugs--