I have the same situation here in Ca in 2009 as the original poster. Budget cuts, etc, the courts are real behind in entering info and with only 2 weeks to go, the courts have no clue of my Case number.
I have an initial court date of Jan 6, 2010 @ 8:30am, as stated on a speeding ticket. There's a chance that my info will still show up by my court date, but with the holidays, I'm not holding my breath.
To show up at the court house and see a clerk on Jan 6 to get the "proof of appearance", does that need to be done by 8:30am (the court time on the ticket), or if the court still does not have my info by that date, I can show up ANY time on Jan 6 to get my "proof of appearance"? Meaning - I do not need to wait for the clerk to open at 9am and go to work real late, to get a paper saying I was there. I can put in a days worth of work, and go to the court house at 3pm when I get off work.