Hi Bookelea...
I am diagnosed bi-polar,bpd,ptsd,add....
As far as the BPD goes, My first psychiatrist did say that it is hard to pinpoint and treat... he did sat therapy was the best form of treatment.
Mootpoint pretty much hit the nail on the head. i wish I could tell you more but I have been concentrating on my addiction (alcohol) and the bi-polar.
But I did some EMDR with a threapist and found it very helpful.
You might look into it...here is a website, there are many...
http://www.emdr.com/frmain01.htm