The Homeschoolers Guide to Portfolios and Transcripts is an excellent book written by homeschooling parent Loretta Heuer. This book will help you track your daughter's progress, speak to school officials, and create a traditional transcript for your college application even if your learning has not been traditional.
Cafi Cohen has been a guiding light for many parents of homeschooling teens. And What About College? How Homeschooling Leads to Admissions to the Best Colleges and Universities is an indispensable book for college-bound homeschoolers. (Be sure to get the second edition, revised for 2001.) Cafi Cohen also has a website that specifically deals with teen homeschooling issues. Visit her at: www.homeschoolteenscollege.net. Good luck!