Parents line Terri Taylor from Falls Church tried to get her daughter tickets for the concert. "I dreaded going home that first day to tell her we couldn't get the tickets."

The problem was some ticket brokers were hijacking the system, buying tickets and reselling them online at much higher prices.

Court documents argue a company called RMG Technologies essentially tricked Ticketmaster's website. Ticketmaster.com requires a customer to enter codes, which have been graphically altered, into the site before a person can buy tickets. In theory, it prevents automated systems from cutting line, but RMG's software allegedly beat the system.

According to court records, brokers used the software to buy up more than 65,000 tickets to all kinds of events in 2007. It went to court, winning an injunction shutting down the software and it's site, ticketbroketools.com, while the battle continues in court.

"At that very minute, trying to get those tickets, it was sold out. It was indicated they were no longer available," said Bryan Kerrigan who couldn't get tickets.

According to Ticketmaster, brokers using RMG's software could, at any time, flood the system. For each request a customer makes, just one broker using RMG's software could make hundreds of requests, coming from just one computer going after the same tickets.

Ticketmaster says RMG had thousands of ticket brokers using their products.

Chevy Chase ticket broker Randy Levenberg wasn't surprised some of his colleagues cheated the system. He says he doesn't do it and says the industry doesn't condone it, especially when it comes to shows aimed at kids. "It's a lot of hurt feelings and I don't want to ruin anybody's day."

Ticketmaster is also under fire because they operate a service called Exchange, which is a forum for reselling tickets to shows like Hannah Montana. In fact, it is part of the basis for a counter-suit filed by RMG. It's claiming anti-trust and monopoly violations by Ticketmaster. RMG's attorney says his client denies any wrong-doing.