Confused please help

I was in an auto accident on Nov 19, 2010. I have insurance for myself and my vehicle, but on that day I was driving another person's vehicle due to mine was in the shop. I had a person pull out in front of me in which I had no chance to stop and was in an accident. I was not given a ticket at the scene of the accident and the police didn't blame me for the accident. I gave the police the insurance cards that were in the vehicle showing the insurance on the vehicle. One week later the police showed up at my door saying the vehicle I was driving was not insured. Now I paid $700.00 to a lawyer went to court and was told to say guilty for the vehicle not having insurance even though it was not my vehicle. Being told I would only get 4 points on my licence. The state now wants to take my license away for 1 year, even though I have insurance on my own vehicle. This is in the state of Missouri. Plus give me the points, and I must provide proof of insurance until 2015. How is this possible when it was not my vehicle I was driving and I didn't know the one I was driving didn't have insurance at the time. Could you please give me some advice on what to do, I feel that I now paid out so much money for a lawyer for nothing. Plus I pay my insurance each month so don't understand why my licence it being taken.