Thoma Cressey Bravo, Inc.

Common Stock, par value $0.01

Series B Convertible Preferred Stock

Common Stock, par value $0.01

Common Stock, par value $0.01

Series B Convertible Preferred Stock

Series B Convertible Preferred Stock

Series B Convertible Preferred Stock

Common Stock, par value $0.01

Series B Convertible Preferred Stock

Series B Convertible Preferred Stock

Series B Convertible Preferred Stock

Series B Convertible Preferred Stock

Common Stock, par value $0.01

Common Stock, par value $0.01

Common Stock, par value $0.01

Common Stock, par value $0.01

Series B Convertible Preferred Stock

Series B Convertible Preferred Stock

Series B Convertible Preferred Stock

Common Stock, par value $0.01

Common Stock, par value $0.01

Common Stock, par value $0.01

Common Stock, par value $0.01

Series B Convertible Preferred Stock

Common Stock

Common Stock

Common Stock

Common Stock

Common Stock