Exception in IDEA 5.0.2 when using CM Synergy plugin

Hello,

I recently downloaded CM Synergy plugin v0.6.2a from:
http://www.intellij.org/twiki/bin/view/Main/CMSynergyPlugin

I see 3 exceptions when I start Intellij. The last source update of this plugin was over a year back. Could that be a problem ?
I absolutely need to use this plugin. It will make my life very easy. Can somebody help with this ?

Thanks in advance,

- J.U

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Env. details:
*************
Intellij: v5.0.2 - Build 3542
O.S: Win XP - sp2
Java: 1.5.0_04 (build 1.5.0_04-b05)
====================================

Exception:1
***********

Icon cannot be found in '/cmsynergy/cm.png', aClass='com.intellij.openapi.actionSystem.impl.ActionManagerImpl'
java.lang.Throwable
at com.intellij.openapi.diagnostic.Logger.error(Logger.java:47)
at com.intellij.openapi.util.IconLoader.getIcon(IconLoader.java:97)
at com.intellij.openapi.util.IconLoader.getIcon(IconLoader.java:78)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.b(ActionManagerImpl.java:353)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.processActionsElement(ActionManagerImpl.java:36)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.a(ActionManagerImpl.java:468)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.readExternal(ActionManagerImpl.java:374)
at com.intellij.openapi.components.impl.ComponentManagerImpl.doInitJdomExternalizable(ComponentManagerImpl.java:190)
.
.
.

-

-

Exception:2
***********
Original exception: Implementing class
java.lang.IncompatibleClassChangeError: Implementing class
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at java.lang.ClassLoader.defineClass(ClassLoader.java:465)
at com.intellij.ide.plugins.cl.IdeaClassLoader.a(IdeaClassLoader.java:15)
at com.intellij.ide.plugins.cl.IdeaClassLoader.findClass(IdeaClassLoader.java:36)
at com.intellij.ide.plugins.cl.PluginClassLoader.loadClass(PluginClassLoader.java:36)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:242)
at com.intellij.openapi.components.impl.ComponentManagerImpl.loadComponentsConfiguration(ComponentManagerImpl.java:287)
at com.intellij.openapi.project.impl.ProjectImpl.loadProjectComponents(ProjectImpl.java:215)
at com.intellij.openapi.project.impl.ProjectManagerImpl.a(ProjectManagerImpl.java:16)
at com.intellij.openapi.project.impl.ProjectManagerImpl.loadProject(ProjectManagerImpl.java:58)
at com.intellij.openapi.project.impl.ProjectManagerImpl.loadAndOpenProject(ProjectManagerImpl.java:61)
at com.intellij.ide.impl.ProjectUtil.openProject(ProjectUtil.java:28)
at com.intellij.idea.IdeaApplication.c(IdeaApplication.java:20)

.
.
.

-

-

Exception:3
***********

Original exception: Implementing class
java.lang.IncompatibleClassChangeError: Implementing class
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at java.lang.ClassLoader.defineClass(ClassLoader.java:465)
at com.intellij.ide.plugins.cl.IdeaClassLoader.a(IdeaClassLoader.java:15)
at com.intellij.ide.plugins.cl.IdeaClassLoader.findClass(IdeaClassLoader.java:36)
at com.intellij.ide.plugins.cl.PluginClassLoader.loadClass(PluginClassLoader.java:36)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:242)
at com.intellij.openapi.components.impl.ComponentManagerImpl.loadComponentsConfiguration(ComponentManagerImpl.java:287)
at com.intellij.openapi.project.impl.ProjectImpl.loadProjectComponents(ProjectImpl.java:215)
at com.intellij.openapi.project.impl.ProjectManagerImpl.a(ProjectManagerImpl.java:16)
at com.intellij.openapi.project.impl.ProjectManagerImpl.newProject(ProjectManagerImpl.java:186)
at com.intellij.openapi.fileEditor.impl.FileDocumentManagerImpl.getDummyProject(FileDocumentManagerImpl.java:11)
at com.intellij.openapi.project.impl.ProjectManagerImpl.openProject(ProjectManagerImpl.java:208)
at com.intellij.openapi.project.impl.ProjectManagerImpl.loadAndOpenProject(ProjectManagerImpl.java:55)
at com.intellij.ide.impl.ProjectUtil.openProject(ProjectUtil.java:28)
.
.
.