If it is a civil judgment entered against you by the insurance company, I would first try to call them to speak with them about it. You should be able to access the court file for the judgment and that will give you a place to start there. Additionally, if you were found guilty of a crime on your driving/criminal record, an expungement may be a possibility considering the mistaken ID. Because these are unique and complicated facts, and because it happened so long ago I would definitely...
The first time offender program is designed to dismiss the charge as complied with probation if the defendant pleads facts sufficient to find guilt on the charge, and then complies with terms, generally community service, restitution, a shoplifting class, and good behavior for 6 months. This type of dismissal is not able to be expunged. I would need to know more about the case to see if you qualify or there is a chance of winning the case outright.
Same form is fine for all charges arising out of the same offense in the same county. The jurisdiction your charges were dismissed out of should have procedures online for you to follow through. Expungements are basically a lot of paperwork and require you to get fingerprinted by the police. Attorneys know how to do them more smoothly and make sure everything is done in accordance with the procedures in the jurisdiction, however there is no reason you cannot do them yourself, pro se.
If the ticket is a moving infraction given by an officer, then the ticket is given to the person driving the car and follows the behavior of that person. If the ticket is a civil penalty (red light camera, or some toll violations) and was mailed to you because your car was seen violating that law, then the ticket would follow you and you would have to prove you were not the driver. As for insurance, they will only know if YOU are found liable for the ticket, not your boyfriend. You will not...
It depends if you were a juvenile at the time of the charges. If not, then the answer is no. Anytime you plead guilty or are found guilty, you cannot have criminal charges expunged. Expungement proceedings are for people innocent of the crimes alleged, not simply because it has been a long time since they happened.
The officer's mistake on the summons had nothing to do with the actual offense you are charged with, therefore it will not be thrown out based on that premise. It is best to get a copy of your driving record and consult with local counsel about the possibilities of a reduction for your case.
Sometimes the officer writes down his location as the offense location on the ticket and he uses his instruments to measure your speed within the limits, however that is a valuable piece of information you would want clarified. There are a few ways to hope to get the charge reduced. Your driving record has a lot to do with it so pick up a copy at the DMV so you are aware of your history. Consult with local traffic counsel about the case.
Generally no. You had an ability to bring evidence on that day, and to set aside the conviction based on new evidence, you must demonstrate that evidence was not available before court, or in the time to appeal, or in the time to make a motion for the judge to reconsider. Basically, you missed the deadlines that would have been available to challenge your conviction, so unfortunately it must stand.
You used the words "conviction" and "dismissed", so it is unclear what actually happened in your case. You would want to get a copy of your warrant/summons and see what the final disposition is before continuing. If you have been charged with a crime, that stays on your record unless it was expunged, and you would want to review the question on the application.