Unable to Upload free Enterprise jar file to my OpenFire Server

I am unable to Upload free Enterprise jar file to my OpenFire Server…whenever I upload it I found an error on error.log file…Like this

2008.04.18 15:29:09 org.jivesoftware.util.log.util.CommonsLogFactory$1.error(CommonsLogFactory.java: 87) Line=19 The content of element type “dwr” must match “(init?,allow?,signatures?)”.

2008.04.18 15:31:09 org.jivesoftware.openfire.container.PluginManager$PluginMonitor.unpackArchives(P luginManager.java:1131)

java.io.IOException: Corrupted pack file: magic/ver = CAFED00D/160.1 should be CAFED00D/150.7

at com.sun.java.util.jar.pack.NativeUnpack.start(Native Method)

at com.sun.java.util.jar.pack.NativeUnpack.run(NativeUnpack.java:168)

at com.sun.java.util.jar.pack.NativeUnpack.run(NativeUnpack.java:217)

at com.sun.java.util.jar.pack.UnpackerImpl.unpack(UnpackerImpl.java:104)

at org.jivesoftware.openfire.container.PluginManager$PluginMonitor.unpackArchives( PluginManager.java:1124)

at org.jivesoftware.openfire.container.PluginManager$PluginMonitor.unzipPlugin(Plu ginManager.java:1080)

at org.jivesoftware.openfire.container.PluginManager$PluginMonitor.run(PluginManag er.java:937)

at org.jivesoftware.openfire.container.PluginManager.installPlugin(PluginManager.j ava:159)

at org.jivesoftware.openfire.update.UpdateManager.downloadPlugin(UpdateManager.jav a:243)

at org.jivesoftware.openfire.update.PluginDownloadManager.installPlugin(PluginDown loadManager.java:56)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.ja va:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at uk.ltd.getahead.dwr.impl.ExecuteQuery.execute(ExecuteQuery.java:239)

at uk.ltd.getahead.dwr.impl.DefaultExecProcessor.handle(DefaultExecProcessor.java: 48)

at uk.ltd.getahead.dwr.impl.DefaultProcessor.handle(DefaultProcessor.java:81)

at uk.ltd.getahead.dwr.AbstractDWRServlet.doPost(AbstractDWRServlet.java:162)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)

at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.ja va:1093)

at org.jivesoftware.admin.AuthCheckFilter.doFilter(AuthCheckFilter.java:98)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.ja va:1084)

at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:11 8)

at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.ja va:1084)

at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)

at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)

at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)

at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726)

at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)

at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollect ion.java:206)

at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)

at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)

at org.mortbay.jetty.Server.handle(Server.java:324)

at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)

at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:842 )

at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:648)

at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:205)

at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)

at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)

at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:450)

2008.04.19 10:36:12 org.jivesoftware.openfire.container.PluginManager.loadPlugin(PluginManager.java: 506) Error loading plugin: /usr/share/openfire/plugins/enterprise

java.lang.ClassNotFoundException: com.jivesoftware.openfire.enterprise.EnterprisePlugin

at java.net.URLClassLoader$1.run(URLClassLoader.java:200)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:188)

at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

at java.lang.ClassLoader.loadClass(ClassLoader.java:251)

at org.jivesoftware.openfire.container.PluginManager.loadPlugin(PluginManager.java :384)

at org.jivesoftware.openfire.container.PluginManager.access$300(PluginManager.java :46)

at org.jivesoftware.openfire.container.PluginManager$PluginMonitor.run(PluginManag er.java:1013)

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.runPeriodi c(ScheduledThreadPoolExecutor.java:142)

at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Schedu ledThreadPoolExecutor.java:166)

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)