I think they have 5 albums. Here I Stand, One For the Kids, Ocean Avenue, Lights and Sounds, and Paper Walls. There are a few singles and such from their earlier days, check it out to be sure.
Actually, there are 5, but I think they are: "When You're Through Thinking, Say Yes", "One For the Kids", "Ocean Avenue", "Lights and Sounds", and "Paper Walls". I don't think that Here I Stand is an Album...