BY GAIL EPSTEIN NIEVES

 A self-proclaimed spy for Cuba testified on videotape Tuesday that the president and several board members of the influential Cuban American National Foundation offered him more than $10,000 to set off two powerful bombs at Havana tourist centers in the mid-1990s.

 Witness Percy Francisco Alvarado told jurors at the trial of five accused Cuban spies that a Cuban exile linked to the Miami-based foundation later delivered a package of detonators and C-4 plastic explosives to him. But Alvarado said he refused to follow through with the bombings because he didn't want to injure "innocent people.''

 Alvarado identified the bomb supplier as ``Pumarejo,'' an apparent nickname for Luis Posada Carriles, an explosives expert who has admitted masterminding a bombing campaign against Havana tourism targets in 1997. Posada linked the bombings to CANF at one point, but ultimately denied that the foundation was involved. With some different details, Alvarado's account was basically the same that he gave in Havana in March 1999 during the trial of a Salvadoran man who confessed to six of the bombings around the Cuban capitol.

 Then and now, Alvarado's testimony sparked vehement denials from the foundation, which denies any connection to him or his claims.

 "None of that is true,'' Miami lawyer Manuel Vazquez, who said he was speaking for foundation president José Francisco "Pepe'' Hernández and the other accused
 foundation leaders. "He is a liar. The foundation had nothing to do with this guy.

 "It's like a script he has,'' Vazquez added. "He's even wearing the same guayabera!''

 Alvarado's testimony was videotaped because Cuban officials would not allow him to travel to the United States for the trial.

 Alvarado testified that he was a Guatemala native who moved to Cuba in the 1960s. After being recruited by Cuban State Security, he said he traveled to Miami 120 times and met with foundation officials who grew to trust him. Alvarado testified that during his trips to Miami between 1993 and 1995, foundation officials recruited him to become a CANF agent, codenamed ``44.''

 In addition to Hernández, Alvarado named human rights activist Luis Zúñiga and board member Arnaldo Monzón as people with whom he dealt on the bombing plots. All the men have denied his accounts.

 Alvarado said Zúñiga put him under the supervision of Alfredo Otero, a Miami businessman who later was one of seven exiles charged in Puerto Rico with plotting to kill Cuban leader Fidel Castro.

 In September 1994, Hernández and Otero offered him $10,000 to put two bombs in Havana's glitzy Tropicana nightclub, Alvarado testified. They told him the bombs wouldn't hurt anyone. In November 1994, Hernández gave him $1,000 in expense money for the plot, Alvarado said. He said he flew to Guatemala and received the bombs and instructions on how to arm them from "Pumarejo'' and another man he did not name Tuesday. Alvarado said he realized then that the bombs would injure or kill.

 After he refused to set off the bombs, Alvarado said that Hernández and Otero offered to increase the payment, but he declined.

 In the spring of 1995, Alvarado said, Monzón offered him an additional $15,000 to plant the bombs. He said he declined.