error after running eclipse

I installed eclipse 3.0.1 on the Win xp ....i have jdk1.4.2....

but when i run eclipse( double clicking eclipse.exe) I get this error...

!SESSION Oct 30, 2005 15:22:59.293

eclipse.buildId=M200409161125

java.version=1.4.2_05

java.vendor=Sun Microsystems Inc.

BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US

!ENTRY org.eclipse.osgi Oct 30, 2005 15:22:59.293

!MESSAGE Error installing bundle: reference:file:c:/Eclipse3/eclipse/plugins/org.eclipse.core.runtime_3.0.1/

!STACK 0

org.osgi.framework.BundleException: Error converting plugin at c:\Eclipse3\eclipse\plugins\org.eclipse.core.runtime_3.0.1.

at org.eclipse.core.runtime.adaptor.EclipseBundleData.generateManifest(EclipseBundleData.java:236)

at org.eclipse.core.runtime.adaptor.EclipseBundleData.loadManifest(EclipseBundleData.java:191)

at org.eclipse.core.runtime.adaptor.EclipseBundleData.getManifest(EclipseBundleData.java:159)

at org.eclipse.core.runtime.adaptor.EclipseBundleData.loadFromManifest(EclipseBundleData.java:280)

at org.eclipse.osgi.framework.internal.defaultadaptor.DefaultBundleData.initializeNewBundle(DefaultBundleData.java:77)

at org.eclipse.osgi.framework.internal.defaultadaptor.DefaultAdaptor$1.begin(DefaultAdaptor.java:451)

at org.eclipse.osgi.framework.internal.core.Framework.installWorkerPrivileged(Framework.java:746)

at org.eclipse.osgi.framework.internal.core.Framework$2.run(Framework.java:664)

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

at org.eclipse.osgi.framework.internal.core.Framework.installWorker(Framework.java:715)

at org.eclipse.osgi.framework.internal.core.Framework.installBundle(Framework.java:659)

at org.eclipse.osgi.framework.internal.core.BundleContextImpl.installBundle(BundleContextImpl.java:219)

at org.eclipse.core.runtime.adaptor.EclipseStarter.installBundles(EclipseStarter.java:800)

at org.eclipse.core.runtime.adaptor.EclipseStarter.loadBasicBundles(EclipseStarter.java:429)

at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:222)

at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:127)

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.core.launcher.Main.basicRun(Main.java:185)

at org.eclipse.core.launcher.Main.run(Main.java:704)

at org.eclipse.core.launcher.Main.main(Main.java:688)

Caused by: org.eclipse.osgi.service.pluginconversion.PluginConversionException: Could not find a plugin.xml or a fragment.xml in c:\Eclipse3\eclipse\plugins\org.eclipse.core.runtime_3.0.1.

at org.eclipse.core.runtime.adaptor.PluginConverterImpl.fillPluginInfo(PluginConverterImpl.java:110)

at org.eclipse.core.runtime.adaptor.PluginConverterImpl.convertManifest(PluginConverterImpl.java:660)

at org.eclipse.core.runtime.adaptor.EclipseBundleData.generateManifest(EclipseBundleData.java:233)

... 22 more

Root exception:

org.eclipse.osgi.service.pluginconversion.PluginConversionException: Could not find a plugin.xml or a fragment.xml in c:\Eclipse3\eclipse\plugins\org.eclipse.core.runtime_3.0.1.