The stage is set for Christie Brinkley and Peter Cook's bitter divorce proceedings, which begin today in Long Island, NY, and will be open to the public per her request, which was granted by the judge in the case.

At stake are the custody, visitation rights and child support of the couple's two young children, Sailor, 9, and Jack, 12. Jack, who was adopted by Cook, is Brinkley's son from her previous marriage to Richard Taubman. The couple reportedly drew up a prenuptial agreement, so money will not be the main focus of the trial.

Former supermodel Brinkley filed for divorce from architect Cook after a decade of marriage upon learning that he was having an alleged affair with his then-18-year-old assistant, Diana Bianchi, in the summer of 2006.

The New York Post reported this week that Bianchi was spotted at a chic eatery in the Hamptons with her lawyer, presumably to prepare for her turn on the witness stand. The Post previously reported that Cook had arranged to pay $300,000 to the now-21-year-old in exchange for her silence, and she is still receiving installments. Bianchi has reportedly said that she will testify if called upon.

Also expected to take the stand is Carri Lyn Ciamarra, a fitness model who allegedly began a relationship with Cook after his split with Brinkley.

Keep checking back for news from the Brinkley/Cook divorce trial...