1. Download your book from your library. See search.overdrive.com
2. Download Calibre:
http://calibre-ebook.com/
3. Download INEPT plugin
see download links from the post from ismoothblog.com:
http://www.ismoothblog.com/2012/10/calibre-free-drm-removal-pdb-secure-ereader.html
4. Unzip the file
5. Open Calibre
Preferences> Plugins
Load plugin from file,
Browse to the zip gile from step 3.
Select ineptepub_v01.7_plugin
6. In calibre Cick Add Books, then browse to the epub you want. For me these are in the folder:
C:\Users\
It copy the book into a folder in Calibre library.
Click the open link next to path on the right side to browse to the new epub folder.
7. Copy the epub to iTunes if you want to use iBooks
This worked for me on a Windows 7 64 bit system.