Thanks for the suggestions.
Over the course of different conversations, I have gathered that the old bassist was kicked out because he wasn't professional and couldn't cut it. They said a few things like "He played bass, but he wasn't a bassist" ??? I guess they mean he just wanted to be in a band or something? They also said that he was missing practices. Listening to songs I have from mp3.com, the bass lines seem fairly solid, and aren't too flashy. I also asked what my level of involvement would be and they said that they want someone to be "another member of the band." So I take it this gives me some liberty to sound like myself? I guess if they don't like that I'm not what they are looking for

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When I talk to them again I will probably ask what they want versus the recordings. Maybe their reluctance to provide me with an audition tape is due to them wanting to try to move in a new direction. I guess I will find out soon enough.
-Bryan