You should get a letter from the court. It will give you all the information you need. You will have to pay the amount of the ticket (probably around $200) plus an additional $24 fee, and pay for traffic school itself (not usually exorbitant). You do NOT need to drive to Orange County, this can all be taken care of in the mail. I do not believe that getting the traffic school referral can be be handled on-line. Once you have been approved for traffic school, I don't know whether Orange County allows on-line schools, but L.A. does, so O.C. probably does.
By the way, do NOT go to court and say it was not you, even if they spelled your name wrong. Perjury is a very serious crime, and when they find out it really was you, you could go to jail. It really is not worth it to avoid a traffic ticket.
Pleading not guilty when you cannot testify that you were not speeding is not a great strategy unless you are just hoping that the officer does not show up for the trial, since that is the only way you will win. Demanding a bunch of documents from the CHP is not going to get you anything except the ire of the traffic commissioner and perhaps a higher fine. You can do it, and you can still ask for traffic school if you are found guilty, but I would certainly not recommend it.
You can get lots of information here:
http://www.occourts.org/traffic/