Crystal Report 2011 from function module in ECC EHP7

Hi

We're currently undergoing upgrade to ECC EHP7.

We had a crystal report (version 2011), which values is fetching from a function module in ECC.

The driver being used in crdb_opensql.

We have transported the transport files that comes with Crystal Report 2011.

However, the crystal report did not return any values when run.

Function module is working fine and return values correctly in ECC.

Is there any thing else we must install in ECC EHP7?

Any advice appreciated.

Rgds

Rusyinni