Hors d'oeuvres weren't the only delectables served at Wednesday night's party in Manhattan for Rita Cosby's bombshell book Blond Ambition: The Untold Story Behind Anna Nicole Smith's Death. The husky-voiced former MSNBC and Fox fox was slapped with a copy of a $60 million libel suit from Smith lawyer and hanger-on Howard K. Stern just as she set foot on her own red carpet.

"He used this as a publicity opportunity for himself," Cosby said of Stern, and she immediately handed the papers to her publicist. "It just shows me that with all these guys, it was always smoke and mirrors."

Stern, Anna Nicole's companion at the time of her death, filed the hefty lawsuit on Tuesday. In it, he refutes Cosby's claims that he used cocaine, conspired to commit kidnapping and murder, and had a homosexual affair with Dannielynn's true babydaddy, Larry Birkhead.

"It stuns me that someone like Howard K. Stern would accuse me of cashing in," Cosby huffed to Radar as she autographed copies of Blond Ambition. At her side during the signing was Smith's grieving mother, Virgie Arthur.

The anti-drug advocacy group D.A.R.E., on the other hand, is happy about the book: They're reaping 10 percent of the profits, which a former DEA agent said will go toward funding curricula on prescription drug abuse.

Also on hand was Mark Speer, the former Birkhead bodyguard who recently accused Larry of posing for paparazzi at Smith's deceased son Daniel's grave. Speer said he's keeping mum with "50 percent" of the dirt he has to dish. What's still secret is "huge," he boasted to Radar. "There's still a lot to be divulged."

Village Voice columnist Michael Musto brought levity to the event. He said he's half way through the book, which sits at No.13 on the New York Times best-seller list. It's an easy read, he told Radar. "There's a lot of pictures." But he's so far unimpressed by the book's big gay revelation. "The thing about Howard and Larry didn't shock me at all—two people in show business are gay?"