On Friday, Attorney General Christine A. Gregoire of Washington State told reporters in a telephone conference call that negotiators still had three unresolved issues, including how to deal with smaller producers who do not take part in a settlement. But two lawyers who have been briefed on the status of the talks said yesterday they believed that the discussions were far more advanced than Ms. Gregoire had suggested.  "They are basically shopping a deal around," one said, referring to this week's round of meetings.