Dear "nice job",
You can easily find info on the net if you google the topic. But off hand I'll just give you this link with some basic exercises you can perform.
http://www.spineuniverse.com/article/back-pain-exercises-4413.html#pelvic_tilt
One important thing to note is holding an engaged transverse abdominus (TVA)all the time. The feeling is as I have described in an earlier post, that of bringing your navel in to meet your spine/sacrum. Its a movement that will level your pelvis, and should not involve the larger abdominal and lower back muscles. The "pelvic tilt" exercise in the above link helps you to grasp the correct activation for TVA.
I'm not a ChiRunner, but I,ve found some of the postural stuff Danny Dreyer has put up in his website
very poignant to back problems. Check out his videos, blogs and articles regarding posture and pelvis and core.
Basically symptoms of back pain will include weakness/numbness in the hip/leg of the same side as the impinged nerves, be it due to herniated or bulging discs, etc. My experience is that you need core and gluteal strengthening in addition to postural adjustments to get maximum results.
"Runner PT" is the expert in this discussion and I hope he's reading this, and that he can give you better advice. You can check out some of his posts in earlier pages of this thread if you want.