Did you mean a regular x-ray or MRI?
I don't think they can intepret x-rays that definitively as you have noted in the evaluation.
That said you should get a referral to see a spinal/back surgeon.
And make sure you bring the films of the MRI (after you have one if not already) to he/she , not just the radiologists interpretation.
Good luck
What you require is an MRI (not a CAT scan). A x-ray evaluation does not meet the "standard of care" circa 2007. Without an MRI is is impossible to prescribe a course of treatment. Well, not impossible, but not the best idea. Some primary care physicians are very good at many things, Other's not so good. A "specialists" opinion is always valyable because they get to see a large number of patients with the same problems. What you do a lot of you get better at.