I'm no expert - I do psychoanalysis - but from what I understand DBT individual and group therapy are meant to be good in treating the symptoms of BPD. There are also a couple of other therapies now developed to help treat people with this disorder:

Transference Focused Psychotherapy (TFP)
Mentalised Based Treatment (MBT)

If you search these you'll come up with more information. Hope you find something that helps you.

Onzi