It sounds like you were arrested but no charges were ever filed. The expungement statute (ORS 137.225) requires you to wait a full year for that type of arrest to be expunged. If, however, a charge was filed and dismissed, you are correct that it would be expungeable now. If you wish to discuss this further, feel free to contact my office at 541-482-2533 or 503-836-3420.
Prosecutors can read this forum, and you are already facing a pretty serious legal situation. Many attorneys offer free or low-cost initial consultations, a much safer option than posting here. Also, a delay in hiring an attorney could jeopardize your defense. I mostly practice in southern oregon but I'd be happy to recommend a couple excellent attorneys in Portland. Give me a call at 541.482.2533 if you want to discuss this further.
The attorney who helped you in 2001 would be the one to call, assuming he or she still has an open office in that area. Otherwise, any local attorney would be able to look up your case pretty easily.
Going to AA meetings is a great idea, as would be looking into an in or outpatient alcohol treatment program. Although jail time can be imposed for this crime, it is also very possible for a defendant convicted of second-degree disorderly conduct to receive little or no jail time. Even better would be getting the charges dismissed altogether, which may be possible. It all depends on the precise circumstances of your conduct (which you unfortunately don't remember), your lack of criminal...
It sounds like your daughter already has an attorney, but that attorney isn't doing a good enough job preparing her defense. If her attorney is a public defender, she can explain the problem with the current attorney and ask for a different one. If the attorney is private, he or she could be fired and replaced.
Based on the information provided, Fred Meyer can legally fire or suspend you. I would contact the attorney who helped you enter diversion to see if he or she can write a brief letter explaining to Fred Meyer how you did all of the diversion requirements and explaining the whole mix-up with court dates. Even if they can legally fire you, many good people enter diversion on a DUI and are not fired from their jobs, so in this case it makes sense to ask Fred Meyer to do the right thing,...
I agree with Rich, the fastest way to do this project is to go to the law library at Willamette University Law School or at the Supreme Court. You could also try the Oregon Archives building. All of these places are in/near downtown Salem. Any of those places will have several sets of books called Oregon Revised Statutes, which contain all of Oregon's statutes (laws). What you need is the set published in the year 1999, which will contain the laws in effect in the year 2000.