Thanks chub_tor - - I've been repopulating my address bnook as best I can, so when I search using "wab", it takes me to this new version - and no sign of the older one. It also asks whether I want the Address Book to be the "default vCard". Don't know anything about this!
Yes, you can recover your lost address book also using third party tool. I would advice you to try Kernel for Outlook Express Recovery Software for the recovery of your emails, folders, address book and other items from .dbx file successfully.