vinandoptiondecoding
VIN and Option Decoding
Vehicle Identification Number decoder
http://www.industryfigure.com/berkeley/Porsche/Images/VINDecoder97.jpg
Input VIN, get list of options
http://www.autoatlanta.com/life/vin/vin.php
Option decoding
http://www.986faq.com/4-0/default.asp gives a good English description, often with pictures that allow you to confirm the item by comparing the car and the picture.
http://www.kindel.com/Porsche/options.asp
http://www.industryfigure.com/berkeley/Porsche/Options/Options99General_22May98.htm which gives 1999 prices
http://www.industryfigure.com/berkeley/Porsche/Options/OptionsMatrix.htm gives the information for the 1997 thru 2002 Boxster and Boxster S.
GrandMother of all Option Lists
http://www.pedrosgarage.com/Site/Porsche_Option_Codes_List.html
or look at my "build sheet" for my 01 S via the index.