How to set up error page when using JSP, Websphere

[shitalv]

I just installed Websphere 4.0.4. I am getting the environment ready. i am running JSP. Whenever any error occurs, I get following exception displayed through my error.jsp (isErrorPage="true" is set for this jsp):

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JSP Error:
com.ibm.servlet.engine.webapp.WebAppErrorReport: d:\WebSphere\AppServer\installedApps\vgnccsdev.ear\ccs.war\ccs\common\cda\views\email\NIWEmailFormEn.jsp(180,7)

JSPG0059E: Unable to compile class for JSP
com.ibm.servlet.engine.webapp.WebAppErrorReport: d:\WebSphere\AppServer\installedApps\vgnccsdev.ear\ccs.war\ccs\common\cda\views\email\NIWEmailFormEn.jsp(180,7) JSPG0059E: Unable to compile class for JSP at com.ibm.servlet.engine.webapp.WebApp.sendError(WebApp.java:597) at com.ibm.servlet.engine.srt.WebAppInvoker.doForward(WebAppInvoker.java:188) at com.ibm.servlet.engine.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:239) at com.ibm.servlet.engine.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:67) at com.ibm.servlet.engine.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:151) at com.ibm.servlet.engine.oselistener.OSEListenerDispatcher.service(OSEListener.java:315) at com.ibm.servlet.engine.http11.HttpConnection.handleRequest(HttpConnection.java:60) at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:323) at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:252) at com.ibm.ws.util.CachedThread.run(ThreadPool.java:137)
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However, i do not get the descriptive error saying where in the JSP things went wrong. Can any one tell why this is happening and what to do to solve the problem.

Thanks in advance..

SP