Problema Primefaces Migração JBOSS-4.2.3.GA (seam 2.1.0) para JBOSS-5.0.0.GA (seam 2.2.0)

Galera, boa tarde!

Estou a dois dias tentando fazer upgrade no ambiente de um sistema.

Migrando JBOSS-4.2.3.GA (com Seam 2.1.0) para JBOSS-5.0.0.GA (com Seam 2.2.0)

Penei um pouco com alguns erros e bugs já resolvidos, até instalado um plugin (jboss-osgi-installer-1.0.0.Beta10.jar)

Consegui, enfim, fazer com que o JBoss-5.0.0.GA levantasse sem erros no console (tinha até me animado)... rsrsrs
Porém, qdo faço chamada a aplicação através do browser a mesma abre completamente quebrada (a depender da pagina nem abre) e as seguintes exceptions são lançadas no console:

java.io.IOException: Error parsing [vfszip:/C:/Java/server/jboss-5.0.0.GA/server/default/deploy/scmmp.ear/lib/primefaces-1.0.0.RC.jar/META-INF/primefaces-p.taglib.xml]: 
	at com.sun.facelets.compiler.TagLibraryConfig.create(TagLibraryConfig.java:410)
	at com.sun.facelets.compiler.TagLibraryConfig.loadImplicit(TagLibraryConfig.java:431)
	at com.sun.facelets.compiler.Compiler.initialize(Compiler.java:87)
	at com.sun.facelets.compiler.Compiler.compile(Compiler.java:104)
	at com.sun.facelets.impl.DefaultFaceletFactory.createFacelet(DefaultFaceletFactory.java:218)
	at com.sun.facelets.impl.DefaultFaceletFactory.getFacelet(DefaultFaceletFactory.java:149)
	at com.sun.facelets.impl.DefaultFaceletFactory.getFacelet(DefaultFaceletFactory.java:100)
	at com.sun.facelets.FaceletViewHandler.buildView(FaceletViewHandler.java:517)
	at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:567)
	at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:100)
	at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:176)
	at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:110)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
	at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
	at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73)
	at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)
	at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
	at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368)
	at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495)
	at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
	at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
	at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Unknown Source)
Caused by: org.xml.sax.SAXException: Error Handling [vfszip:/C:/Java/server/jboss-5.0.0.GA/server/default/deploy/scmmp.ear/lib/primefaces-1.0.0.RC.jar/META-INF/primefaces-p.taglib.xml@12,19] <handler-class>
	at com.sun.facelets.compiler.TagLibraryConfig$LibraryHandler.endElement(TagLibraryConfig.java:271)
	at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
	at org.apache.xerces.impl.dtd.XMLDTDValidator.endNamespaceScope(Unknown Source)
	at org.apache.xerces.impl.dtd.XMLDTDValidator.handleEndElement(Unknown Source)
	at org.apache.xerces.impl.dtd.XMLDTDValidator.endElement(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
	at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
	at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
	at org.apache.xerces.jaxp.SAXParserImpl.parse(Unknown Source)
	at javax.xml.parsers.SAXParser.parse(Unknown Source)
	at com.sun.facelets.compiler.TagLibraryConfig.create(TagLibraryConfig.java:407)
	... 56 more

... WARNING: FacesMessage(s) have been enqueued, but may not have been displayed.

Costumava ter esse erro quando utilizava o JBOSS-4.2.3.GA, porém era resolvido fazendo a seguinte alteracao no arquivo
\jboss-4.2.3.GA\server\default\deploy\jboss-web.deployer\META-INF\jboss-service.xml

de:

para:

Não estou conseguindo resolver esse erro no JBOSS-5.0.0.GA

Alguém já passou por isso ou poderia me mostrar um caminho a ser seguido para tentar resolver?

obrigado.

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