pluto 1.1.3 and tomcat 6.0.13 questions

Hello,
   I've gotten pluto 1.1.3 installed inside of tomcat 6.0.13.  I can get the
"Hello World!" if I go to the /testsuite url.

I get the login page if I go to /pluto/portal, but after successful
authentication, I get an exception:
java.lang.RuntimeException: JSP 2.1 Not yet supported.  Fall back to JSP 2.0

Is pluto capable of running in tomcat 6??

Thanks.

Here is the stack trace:
May 22, 2007 10:28:08 AM org.apache.pluto.tags.el.ExpressionEvaluatorProxy <clinit>
INFO: ExpressionEvaluator Proxy Found:
org.apache.pluto.tags.el.JSP21ExpressionEvaluatorProxy
May 22, 2007 10:28:08 AM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.RuntimeException: JSP 2.1 Not yet supported.  Fall back to JSP 2.0
	at
org.apache.pluto.tags.el.JSP21ExpressionEvaluatorProxy.evaluate(JSP21ExpressionEvaluatorProxy.java:25)
	at org.apache.pluto.driver.tags.PortletTag.evaluatePortletId(PortletTag.java:211)
	at org.apache.pluto.driver.tags.PortletTag.doStartTag(PortletTag.java:108)
	at
org.apache.jsp.WEB_002dINF.themes.portlet_002dskin_jsp._jspx_meth_pluto_005fportlet_005f0(portlet_002dskin_jsp.java:107)
	at
org.apache.jsp.WEB_002dINF.themes.portlet_002dskin_jsp._jspService(portlet_002dskin_jsp.java:81)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654)
	at
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:557)
	at
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:481)
	at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:968)
	at
org.apache.jsp.WEB_002dINF.themes.pluto_002ddefault_002dtheme_jsp._jspx_meth_c_005fforEach_005f1(pluto_002ddefault_002dtheme_jsp.java:492)
	at
org.apache.jsp.WEB_002dINF.themes.pluto_002ddefault_002dtheme_jsp._jspx_meth_c_005fotherwise_005f0(pluto_002ddefault_002dtheme_jsp.java:436)
	at
org.apache.jsp.WEB_002dINF.themes.pluto_002ddefault_002dtheme_jsp._jspx_meth_c_005fchoose_005f0(pluto_002ddefault_002dtheme_jsp.java:297)
	at
org.apache.jsp.WEB_002dINF.themes.pluto_002ddefault_002dtheme_jsp._jspService(pluto_002ddefault_002dtheme_jsp.java:152)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654)
	at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:445)
	at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:379)
	at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:292)
	at org.apache.pluto.driver.PortalDriverServlet.doGet(PortalDriverServlet.java:142)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
	at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
	at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
	at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:852)
	at
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:584)
	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1508)
	at java.lang.Thread.run(Thread.java:619)
-- 
Brian Millett - [ Timov and Vir, "Soul Mates"]
"I won't bite, Vir."
'With all due respect, madam. That's not what I've heard.'
"Alright, that *one* time."
'It was...it was twice.'