Actually it is my understanding that at the last Girl Scout convention they voted to abolish the Cadette and Senior names and refer to girls in that age group as Girl Scouts 11-17. You'll notice that new IPA books are being sold under that title.
Also, if you are interested in Campus Girl Scouts, join their Yahoo group (
http://groups.yahoo.com/group/campusgs/) or visit their website (
http://www.geocities.com/campusgs/).