subpoenaed for minor car accident

Greetings Attorneys, I just need an advice regarding my case. I was issued a subpoena regarding on a minor car accident which happened last sept 2013. Everything was documented and we both went to police station for a police report. I know for myself that it was the taxi driver's fault as he suddenly stepped on the brake upon seeing a passenger but he was saying otherwise, that its my fault. After the incident, the taxi operator didn't even bother to contact me regarding the repair of their unit. So,I left everything in my insurance for the repair of my car(a small scratch on the paint). Can you please help on what to do next? Im only a student and i really cant afford a lawyer. Can i question their motive why they filed after almost a year? i will really appreciate your help. Thanks!