Erro deploy JBoss5

Boa tarde pessoal.
Então, atualmente uso o JBoss 4.2.2 e faço minhas aplicações no NetBeans sossegadamente.

To querendo migrar pro Jboss5 e to engasgado numas partes aqui.
Os emus ears, que antes subiam normalmente no Jboss 4.2.2 estão dando esse erro no JBoss 5:

 2009-07-06 14:15:21,951 WARN  [org.jboss.system.server.profileservice.hotdeploy.HDScanner] (HDScanner) Scan failed
org.jboss.deployers.spi.DeploymentException: Exception determining structure: AbstractVFSDeployment(logic00_ERPServer-1.0.20.ear)
        at org.jboss.deployers.spi.DeploymentException.rethrowAsDeploymentException(DeploymentException.java:49)
        at org.jboss.deployers.structure.spi.helpers.AbstractStructuralDeployers.determineStructure(AbstractStructuralDeployers.java:85)
        at org.jboss.deployers.plugins.main.MainDeployerImpl.determineStructure(MainDeployerImpl.java:1004)
        at org.jboss.deployers.plugins.main.MainDeployerImpl.determineDeploymentContext(MainDeployerImpl.java:440)
        at org.jboss.deployers.plugins.main.MainDeployerImpl.addDeployment(MainDeployerImpl.java:390)
        at org.jboss.deployers.plugins.main.MainDeployerImpl.addDeployment(MainDeployerImpl.java:300)
        at org.jboss.system.server.profileservice.repository.MainDeployerAdapter.addDeployment(MainDeployerAdapter.java:86)
        at org.jboss.system.server.profileservice.hotdeploy.HDScanner.scan(HDScanner.java:344)
        at org.jboss.system.server.profileservice.hotdeploy.HDScanner.run(HDScanner.java:255)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:417)
        at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:280)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:135)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:65)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:146)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:170)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
        at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.RuntimeException: Error determining structure: logic00_ERPServer-1.0.20.ear
        at org.jboss.deployment.EARStructure.determineStructure(EARStructure.java:293)
        at org.jboss.deployers.vfs.plugins.structure.StructureDeployerWrapper.determineStructure(StructureDeployerWrapper.java:73)
        at org.jboss.deployers.vfs.plugins.structure.VFSStructuralDeployersImpl.doDetermineStructure(VFSStructuralDeployersImpl.java:196)
        at org.jboss.deployers.vfs.plugins.structure.VFSStructuralDeployersImpl.determineStructure(VFSStructuralDeployersImpl.java:221)
        at org.jboss.deployers.structure.spi.helpers.AbstractStructuralDeployers.determineStructure(AbstractStructuralDeployers.java:77)
        ... 16 more
Caused by: org.jboss.xb.binding.JBossXBException: Failed to parse source: The prefix "xsd" for element "xsd:annotation" is not bound. @ *unknown*[2,17]
        at org.jboss.xb.binding.parser.sax.SaxJBossXBParser.parse(SaxJBossXBParser.java:203)
        at org.jboss.xb.binding.parser.sax.SaxJBossXBParser.parse(SaxJBossXBParser.java:183)
        at org.jboss.xb.binding.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:161)
        at org.jboss.deployment.EARStructure.determineStructure(EARStructure.java:160)
        ... 20 more
Caused by: org.xml.sax.SAXException: The prefix "xsd" for element "xsd:annotation" is not bound. @ *unknown*[2,17]
        at org.jboss.xb.binding.parser.sax.SaxJBossXBParser$MetaDataErrorHandler.fatalError(SaxJBossXBParser.java:432)
        at org.apache.xerces.util.ErrorHandlerWrapper.fatalError(Unknown Source)
        at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
        at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
        at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
        at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
        at org.apache.xerces.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(Unknown Source)
        at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$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.jboss.xb.binding.parser.sax.SaxJBossXBParser.parse(SaxJBossXBParser.java:199)
        ... 23 more

Sai pesquisandoe encontrei alguns tópicos semelhante sno GUJ, mas nenhum com uma resposta.
O que encontro ai por fora, a maior parte indica que devo mudar alguns arquivos XML pra ficar compatível com a versão 5 do JEE mas mesmoa ssim continuo com o erro.
O unico XML que tenho aqui é o application.xml, que encontrei algumas modifcações a serem feitas aqui:
http://java.sun.com/xml/ns/javaee/application_5.xsd

Vale lembrar que esse meu ear não tem persistence.xml e nem web.xml (pois não é arquivo web e nem usa BD).
Qualquer ajuda seria de grande valia, os textos que encontro são incompletos e muito mau explicados, além das teorias porcas que algumas pessoas geraram em threads, que só poluiram a leitura (ta dificil garimpar informações desse jeito e com a dor de cabeça que estou).

Muito obrigado!

Já tentou verificar se a versão da VM que o seu Jboss está executando é a mesma que compilou sua aplicação?

Nossa, nem lembrava desse tópico, visto que ele tem mais de 3 anos rsrs.