***Kinda Urgent***Need info on Characters in Samuel Taylors play Sabrina Fair

OK. About an hour ago I found out I am going to audition for Samuel Taylor's play Sabrina Fair at 7 tonight (yeah. it's a long story). I know enough about the script -as much as you can with out reading it- but nothing (and I do mean NOTHING) about the characters. So I have searched the net and found out that a girl in high school was Betty in the same play some where else and sense she is close to my age I have decided to try out for Betty. But again, I know nothing about Betty or any other character for that matter (seriously I have no clue at all. Isn't she a maid or something?) so I would appreciate any help any one could give me. Thanks!