[Macromedia][Oracle JDBC Driver][Oracle]ORA-12154: TNS:could not resolve the connect identifier specified

Hi All
I'm using CF 8, when i try to connect my application to Oracle RAC 10g Release 2, i receive this error :
"Error Executing Database Query.
[Macromedia][Oracle JDBC Driver][Oracle]ORA-12154: TNS:could not resolve the connect identifier specified"

Previously when i connect using this old datasource setting there's no problem to connect to the application :
Data & Services > Datasources > Oracle
CF Data Source Name : kewangan
SID Name : S021
Server : 10.1.101.11 Port : 1521
User name : spb
Password : XXXXXXX

This is my datasource setting for Oracle RAC :
Data & Services > Datasources > Other

CF Data Source Name : kewangan
JDBC URL : jdbc:macromedia:oracle://dbl01-vip.dbp.gov.my:1521;ServiceName=orcl_taf.dbp.gov.my;AlternateServers=(dbl02-vip.dbp.gov.my:1521);ConnectionRetryCount=2;ConnectionRetryDelay=5;loadBalancing=true
Driver Class : macromedia.jdbc.MacromediaDriver
Driver Name :
User name : spb
Password : XXXXXXX

Can somebody help me to connect to Oracle RAc 10g Release 2....