Kudos to your daughter and you! That high school/community college program is absolutely the best. My youngest is doing the same as your daughter. She will have her high school diploma the first week of June and her AA the second week, turning 18 in between. She's headed to a four year college as well, but won't have to do the whole four years, also has been offered some good scholarships. And she hasn't been ruined by the older 'worldly' kids, or the philosophies of men...very open minded kid.
Go Zags! (great school, make sure you look into their "Foley Library!"