Here is the reply from NHC Det Boston:
Thank you for your inquiry concerning the Constitution drawings CD. We have pulled the old CD from circulation as the platform on which it was built is no longer viable with most current computer programs. We are in the process of creating a new compilation of the ship's drawings and that CD should be available in early 2010. Please consult our website again for further up-dates.
In the mean time, if there is a single drawing that you are interested in, please let me know and I may be able to send it to you electronically as a PDF file.
Thank you again for your interest.
The CD works fine with XP and predecessors; perhaps it doesn't work with Vista. If that's the case, it is in good company. If you have an appropriate platform, I can make a copy of my CD or paper prints of things that interest you.