I unable to configurarion JDBC pools for TN DB2


I tried to configure JDBC Pool Alias for DB2 for TN like under:
Alias Name : DocumentHistory

Alias Description: DocumentHistory

Associated Driver Alias: DataDirect Connect JDBC DB2 Driver

Database URL: jdbc:db2://dbhostname:port;databaseName=DBName;CreateDefaultPackage=true;ReplacePackage=TRUE;PackageName=JDBCPKG

User Id: db2admin

Password: db2admin etc…

Then I restart IS and TEST DocumentHistory through admin page, but it displys follwing message:
“Test of DocumentHistory Failed
No suitable driver”

Help me to resolve above problem.

Your suggestions appreciable