Sorry to start another thread - deleted the previous one.

I had an installation that I upgraded to R14. I can confirm that not only the 
kabc folder is neither copied nor renames to tdeabc, but actually tdeabc does 
not exist at all until one first starts kmail (maybe one must even start the 
address book).

Once I got the empty address book, copying the content of kabc did the trick.

Regards,

Thierry