Solution:

Please go to erwin.com and click Support, Documentation.

All of the Documentation Bookshelves should now display by their particular release of erwin.  e.g.,

CA ERwin Data Modeler r7.3.10-US English
CA ERwin Data Modeler r8.0.01-US English
CA ERwin Data Modeler r7.3.11-US English
CA ERwin Data Modeler r8.1-US English
CA ERwin Data Modeler r8 -US English
CA CA ERwin Data Modeler r8.2.1 -US English
CA CA ERwin Data Modeler r9.0 -US English
CA CA ERwin Data Modeler r8.2.6 -US English
CA CA ERwin Data Modeler r7.3.12 -US English
CA ERwin Data Modeler r8.2.7 -US English

• To get there when logged into Support Online (support.ca.com):

1. Under Support, click the link Documentation to open the Documentation web page.  Find a Product Documentation Bookshelf should now appear. 
2. Under Select a Bookshelf type erwin.  All available erwin bookshelves should appear in a drop-down list.

More Information:

Please contact CA Technical Support at http://erwin.com/support