Revised form 16A

In the revised form 16A, the acknowledgement numbers of all quarterly returns filed with NDSL are required to be given. Does this mean that now the Form 16A can now be issued only at the end of the financial year, consolidating all the entries pertaining to the deductee in the relevant financial year?
If any deductor has already issued the certificates for the tax deducted from April 2006 to February 2007, then whether all those certificates will be rquired to called back and issued new certificates as per the revised form?
Thanking in advance
Yours faithfully
Kedar Bapat