I seem to have stirred up a can of worms! This was NOT my intention,
I merely wanted advice on the best ODBC drive to use with FB, given
that all of them seem to have problems of some sort (i.e.
compatibility with CR or cost). I have used IB for 5 years and my
reason for moving to FB is cost and the fact that I have more faith
in its long term future that that of IB.

I still need an answer to my original question!