I double-clicked on the AddressBook-v22.abcddb file but got the message, "No importable cards were found."
I am accessing the file through User>Library>Application Support>AddressBook.
I can go through my old e-mails and just make new cards; I really don't have that many contacts...
Here is the answer: http://osxdaily.com/2011/07/22/access-user-library-folder-in-os-x-lion/
As in the past, just replace the New AddressBook Folder (hidden by Lion) with the Old AddressBook folder copied from the previous operating system.