I am getting exception when running the project exception is

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" java.lang.ExceptionInInitializerError
at persistence.HibernateUtil.<clinit>(Unknown Source)
at hello.HelloWorld.main(Unknown Source)
Caused by: org.hibernate.HibernateException: /hibernate.cfg.xml not found
at org.hibernate.util.ConfigHelper.getResourceAsStream(ConfigHelper.java:147)
at org.hibernate.cfg.Configuration.getConfigurationInputStream(Configuration.java:1405)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1427)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1414)
... 2 more
but the hibernate.cfg.xml file is the at right place

and one more exception the when i am opening the Hibernate perspective in eclipse the exception is given below please help me out i have struck here from 3 days .
UNHANDLED EVENT LOOP EXCEPTION
org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.IllegalAccessError: tried to access method org.eclipse.jface.viewers.ColumnViewer.isBusy()Z from class org.hibernate.eclipse.console.viewers.xpl.MTreeViewer)
at org.eclipse.swt.SWT.error(SWT.java:3563)
at org.eclipse.swt.SWT.error(SWT.java:3481)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:126)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3659)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3296)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447)
at org.eclipse.equinox.launcher.Main.run(Main.java:1173)
Caused by: java.lang.IllegalAccessError: tried to access method org.eclipse.jface.viewers.ColumnViewer.isBusy()Z from class org.hibernate.eclipse.console.viewers.xpl.MTreeViewer
at org.hibernate.eclipse.console.viewers.xpl.MTreeViewer.add(MTreeViewer.java:69)
at org.eclipse.ui.progress.DeferredTreeContentManager$3.runInUIThread(DeferredTreeContentManager.java:308)
at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:94)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:123)
... 22 more

THANKS IN ADVANCE

First of all very very Thanks for ur reply
Sir my Eclipse Release Version is 3.3.1.1 & plugin is HibernateTools-3.2.4.GA-R200905070146-H18, OS : Windows Vista Home Basic 32 bit.
I solved that problem of Hibernate.cfg.xml file by passing as parameter to Configuration.configure (), But the when ever i am opening the Hibernate Perspective i am getting the same execption..

Sir now my Project is getting execption as

Buildfile: D:\SUMIT\workspace\helloworld\build.xml
clean:
[delete] Deleting directory D:\SUMIT\workspace\helloworld\bin
[mkdir] Created dir: D:\SUMIT\workspace\helloworld\bin
compile:
[javac] Compiling 3 source files to D:\SUMIT\workspace\helloworld\bin
copymetafiles:
[copy] Copying 4 files to D:\SUMIT\workspace\helloworld\bin
run:
[java] Nov 19, 2009 8:48:12 PM org.hibernate.cfg.Environment <clinit>
[java] INFO: Hibernate 3.2.5
[java] Nov 19, 2009 8:48:12 PM org.hibernate.cfg.Environment <clinit>
[java] INFO: hibernate.properties not found
[java] Nov 19, 2009 8:48:12 PM org.hibernate.cfg.Environment buildBytecodeProvider
[java] INFO: Bytecode provider name : cglib
[java] Nov 19, 2009 8:48:12 PM org.hibernate.cfg.Environment <clinit>
[java] INFO: using JDK 1.4 java.sql.Timestamp handling
[java] Nov 19, 2009 8:48:12 PM org.hibernate.cfg.Configuration configure
[java] INFO: configuring from file: hibernate.cfg.xml
[java] Nov 19, 2009 8:48:12 PM org.hibernate.cfg.Configuration addResource
[java] INFO: Reading mappings from resource : hello/Message.hbm.xml
[java] Nov 19, 2009 8:48:13 PM org.hibernate.cfg.HbmBinder bindRootPersistentClassCommonValues
[java] INFO: Mapping class: hello.Message -> MESSAGES
[java] Nov 19, 2009 8:48:13 PM org.hibernate.cfg.Configuration doConfigure
[java] INFO: Configured SessionFactory: null
[java] Nov 19, 2009 8:48:13 PM org.hibernate.connection.C3P0ConnectionProvider configure
[java] INFO: C3P0 using driver: org.hsqldb.jdbcDriver at URL: jdbc:hsqldb:hsql://localhost
[java] Nov 19, 2009 8:48:13 PM org.hibernate.connection.C3P0ConnectionProvider configure
[java] INFO: Connection properties: {user=sa, password=****}
[java] Nov 19, 2009 8:48:13 PM org.hibernate.connection.C3P0ConnectionProvider configure
[java] INFO: autocommit mode: false
[java] Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
[java] at java.lang.ClassLoader.defineClass1(Native Method)
[java] at java.lang.ClassLoader.defineClass(Unknown Source)
[java] at java.security.SecureClassLoader.defineClass(Unknown Source)
[java] at java.net.URLClassLoader.defineClass(Unknown Source)
[java] at java.net.URLClassLoader.access$100(Unknown Source)
[java] at java.net.URLClassLoader$1.run(Unknown Source)
[java] at java.security.AccessController.doPrivileged(Native Method)
[java] at java.net.URLClassLoader.findClass(Unknown Source)
[java] at java.lang.ClassLoader.loadClass(Unknown Source)
[java] at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
[java] at java.lang.ClassLoader.loadClass(Unknown Source)
[java] at java.lang.ClassLoader.loadClassInternal(Unknown Source)
[java] at java.lang.Class.forName0(Native Method)
[java] at java.lang.Class.forName(Unknown Source)
[java] at org.hibernate.connection.C3P0ConnectionProvider.configure(C3P0ConnectionProvider.java:92)
[java] at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:124)
[java] at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:56)
[java] at org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:414)
[java] at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:62)
[java] at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2009)
[java] at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1292)
[java] at persistence.HibernateUtil.<clinit>(Unknown Source)
[java] at hello.HelloWorld.main(Unknown Source)
[java] Java Result: 1
BUILD SUCCESSFUL
Total time: 2 seconds

Can u Please Help me out Thanks In Advance.....