JDBC Connection Pooling using datasource

Hi,

We are trying to create a JDBC datasource in NWA and use it in message mapping. Have followed the below links and the datasource shows as active in NWA.

http://scn.sap.com/people/ayyapparajkv/blog/2008/11/21/creating-jdbc-data-sources-using-nwa-for-different-databases-in-ce

However, when trying to use the datasource, getting the below error. The JDBC drivers for MSSQL 2008 are installed and I can do a lookup using the standard JDBC lookup provided in mapping.

Anyone faced a similar problem?

Regards