Interbase ODBC driver, local

Having created a local Interbase DB/application with Delphi, a customer
wants to use Crystal Reports (16-bit) to produce reports using this
database.

An ODBC driver was included with Delphi 1.0, but this driver seems to have
subsequently disappeared from later versions.  V1.02 does not include this
driver and neither does V2.

Does anybody have any idea where I can get hold of the local Interbase ODBC
driver?  Is there a cost involved, if so how much?

Thanks in advance for any help.

See ya

Phil