Her name was Casey and she said she was 13.

That didn't stop 28 men from trying to get their hands on her.

Casey is really 18 and she was the lure when the men showed up at her house in Mantoloking, N.J., over the weekend expecting to have sex with an underage girl and, instead, found themselves the stars of the "Dateline NBC" series, "To Catch a Predator."

Cops were also present at the Ocean County residence and arrested the men, including a school-bus driver from Philadelphia.

The suspects are from four states and one man rode six hours on his motorcycle from Pennsylvania to get to the rendezvous, authorities said.

The sting, organized by "Dateline" and the predator watchdog group Perverted Justice, will be broadcast at a date that has not yet been decided.

The Philly bus driver, identified as Sean Erick Saintil, 29, of 52nd Street near Westminster Avenue, West Philadelphia, was charged with attempted sexual assault, luring a minor and transmitting pornographic images, said Ron Deligny, Ocean County assistant prosecutor.

Philadelphia School District spokeswoman Felecia Ward said Saintil, whom the district identified as Jean Santil, was employed by Atlantic Express Bus Co., a subcontractor for the district, in September 2005.

The district requires that all bus-subcontracting companies conduct criminal background checks and child-abuse background checks on prospective employees before issuing them a valid license, Ward said.

Saintil drove for Community Education Partners, transporting alternative-education and disciplinary students in grades 5-12 without any previously reported incidents of misconduct, she said.

She said Saintil drove for all three CEP schools: 4300 Westminster Ave., Front Street and Hunting Park Avenue, and 12th Street and Allegheny Avenue.

"If the charges against him deal with a minor, he will be terminated based upon his actions," Ward said.

Saintil was released from custody over the weekend after he posted bail, which was set at $50,000, said Deligny.

A man at Saintil's home said the former bus driver was not present.

"I certainly hope it's a deterrent," said Deligny, of the sting operation, dubbed "Operation 15 Minutes."

The Perverted Justice group approached Ocean County officials about possible sex offenders in the area and by midday Thursday had lined up several men from four states, said Xavier Von Erck, director of operations for Perverted Justice and its Web site, Perverted-Justice.com.

It took the PJ volunteers, who pose online as 10- to 15-year-olds, two weeks to find their targets, Von Erck said.

According to the Web site, the group states that "the people we bust, 'wannabe pedophiles' as we call them, are not pedophiles in the sense that they have necessarily committed the act of pedophilia - however, if you look at the chat logs we post, you should be able to see that they have all clearly demonstrated interest in performing pedophilia. This is why we call them 'wannabes.' "

Perverted Justice, founded in the Portland, Ore., area in 2002, decided that it was time to sting the Northeast, and it chose the Jersey shore because of its proximity to Philadelphia, New York and other populated areas, said Von Erck.

The Mantoloking operation nabbed the third-highest number of suspects of all the group's stings. "The northeast part of the country is just as active as the rest of the country," he said.

Von Erck said he hopes "predators will think three, four, five times before they talk to kids online." *

Staff writer Mensah Dean contributed to this report.