Erro ao carregar .jar no tomcat

Caros,
instalei o tomcat e funcionou perfeitamente mas quando coloquei o .jar do mysql esta dando o erro abaixo ao inicializar e meu projeto que está no eclipse nao acha as referencias para o .jar.
Estou com o servidor tomcat configurado e rodanto corretamente no eclipse.
Aguem sabe como corrigir isso?
Desde já agradeço a todos.

21/05/2010 14:23:33 org.apache.catalina.startup.TldConfig tldScanJar
SEVERE: Exception processing JAR at resource path C:\Arquivos de programas\Apache Software Foundation\Tomcat 6.0\lib\mysql-connector-java-5.1.7-bin.jar in context
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.(Unknown Source)
at java.util.jar.JarFile.(Unknown Source)
at java.util.jar.JarFile.(Unknown Source)
at org.apache.catalina.startup.TldConfig.tldScanJar(TldConfig.java:346)
at org.apache.catalina.startup.TldConfig.execute(TldConfig.java:273)
at org.apache.catalina.startup.TldConfig.lifecycleEvent(TldConfig.java:634)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4377)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:519)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
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.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)