Hey, I know it's frustrating to deal with, but these suggestions might help:

First and foremost, this book by the man who cured my bad knee, Jack Nicklaus's bad back, my friend's sciatica, and oh so many more:

http://www.amazon.com/exec/obidos/t...=glance&s=books

Incredible!

Next, try the Static Back Press. Get down on the floor (trust me, it will be worth it) and arrange yourself so you are lying flat on the floor except your legs are supported by an ottoman, couch seat, chair seat, etc. You should look like you are sitting upright in a straight chair that has been tipped over onto its back.

Then relax. (This is my favorite exercise.)
I don't know anyone this hasn't helped.

Lastly, running might just be too much of a strain at first, walking will be easier on all your joints.

Good Luck!