Tried extracting new zip over old one - error on boot of batch file

---- Debugging information ----
required-type : com.atlassian.bamboo.upgrader.VersionNineteenToVersionTwentyUpgrader$MyOriginalBuild
cause-message : myKey : myKey
class : com.atlassian.bamboo.upgrader.VersionNineteenToVersionTwentyUpgrader$MyOriginalBuild
message : myKey : myKey
line number : 3
path : /Project/myKey
cause-exception : com.thoughtworks.xstream.alias.CannotResolveClassException
-------------------------------
2006-09-25 08:43:54,157 INFO [main] [FlushingSpringSessionInViewFilterForHibernate] Initializing filter 'sessioninview'
2006-09-25 08:43:54,188 INFO [main] [FlushingSpringSessionInViewFilterForHibernate] Filter 'sessioninview' configured successfully
2006-09-25 08:43:54,360 INFO [main] [DispatcherUtils] Could not load portlet-api, disabling webwork's portlet support.
2006-09-25 08:43:54,438 INFO [main] [BambooFilterDispatcher] Bamboo has been installed into: C:\Developments\build\Bamboo\webapp
2006-09-25 08:43:54,641 INFO [main] [JdbcTransactionObjectSupport] JDBC 3.0 Savepoint class is available
2006-09-25 08:43:55,032 INFO [main] [DefaultVersionUpgrader] Upgrading from version 19 to 20
2006-09-25 08:43:55,048 INFO [main] [VersionNineteenToVersionTwentyUpgrader] com.thoughtworks.xstream.converters.ConversionException: myKey : myKey
---- Debugging information ----
required-type : com.atlassian.bamboo.upgrader.VersionNineteenToVersionTwentyUpgrader$MyOriginalBuild
cause-message : myKey : myKey
class : com.atlassian.bamboo.upgrader.VersionNineteenToVersionTwentyUpgrader$MyOriginalBuild
message : myKey : myKey
line number : 3
path : /Project/myKey
cause-exception : com.thoughtworks.xstream.alias.CannotResolveClassException
-------------------------------
2006-09-25 08:43:55,079 FATAL [main] [BambooContainer] Cannot start bamboo
com.thoughtworks.xstream.converters.ConversionException: myBuilderLabelPathMaps : myBuilderLabelPathMaps
---- Debugging information ----
required-type : com.atlassian.bamboo.upgrader.VersionNineteenToVersionTwentyUpgrader$OriginalConfig
cause-message : myBuilderLabelPathMaps : myBuilderLabelPathMaps
class : com.atlassian.bamboo.upgrader.VersionNineteenToVersionTwentyUpgrader$OriginalConfig
message : myBuilderLabelPathMaps : myBuilderLabelPathMaps
line number : 28
path : /AdministrationConfiguration/myBuilderLabelPathMaps
cause-exception : com.thoughtworks.xstream.alias.CannotResolveClassException
-------------------------------
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(Unknown Source)
at com.thoughtworks.xstream.core.ReferenceByXPathUnmarshaller.convertAnother(Unknown Source)
at com.thoughtworks.xstream.core.TreeUnmarshaller.start(Unknown Source)
at com.thoughtworks.xstream.core.ReferenceByXPathMarshallingStrategy.unmarshal(Unknown Source)
at com.thoughtworks.xstream.XStream.unmarshal(Unknown Source)
at com.thoughtworks.xstream.XStream.fromXML(Unknown Source)
at com.thoughtworks.xstream.XStream.fromXML(Unknown Source)
at com.atlassian.bamboo.persister.xstream.AbstractXStreamPersister.fromXML(AbstractXStreamPersister.java:146)
at com.atlassian.bamboo.upgrader.VersionNineteenToVersionTwentyUpgrader.readInTheAdminConfig(VersionNineteenToVersionTwentyUpgrader.java:112)
at com.atlassian.bamboo.upgrader.VersionNineteenToVersionTwentyUpgrader.updateBuilderMapsWithCurrentBuilderSettings(VersionNineteenToVersionTwentyUpgrader.java:63)
at com.atlassian.bamboo.upgrader.VersionNineteenToVersionTwentyUpgrader.upgrade(VersionNineteenToVersionTwentyUpgrader.java:57)
at com.atlassian.bamboo.upgrader.DefaultVersionUpgrader.updateToCurrentVersion(DefaultVersionUpgrader.java:103)
at com.atlassian.bamboo.persister.file.FileBasedPersister.updateToCurrentVersion(FileBasedPersister.java:243)
at com.atlassian.bamboo.persister.file.FileBasedPersister.start(FileBasedPersister.java:187)
at com.atlassian.bamboo.container.BambooContainer.start(BambooContainer.java:161)
at com.atlassian.bamboo.ww2.BambooFilterDispatcher.startBambooContainer(BambooFilterDispatcher.java:136)
at com.atlassian.bamboo.ww2.BambooFilterDispatcher.initialise(BambooFilterDispatcher.java:86)
at com.atlassian.bamboo.ww2.BambooFilterDispatcher.init(BambooFilterDispatcher.java:39)
at org.mortbay.jetty.servlet.FilterHolder.start(FilterHolder.java:71)
at org.mortbay.jetty.servlet.WebApplicationHandler.initializeServlets(WebApplicationHandler.java:312)
at org.mortbay.jetty.servlet.WebApplicationContext.doStart(WebApplicationContext.java:511)
at org.mortbay.jetty.plus.PlusWebAppContext.doStart(PlusWebAppContext.java:149)
at org.mortbay.util.Container.start(Container.java:72)
at org.mortbay.http.HttpServer.doStart(HttpServer.java:753)
at org.mortbay.jetty.plus.Server.doStart(Server.java:153)
at org.mortbay.util.Container.start(Container.java:72)
at com.atlassian.bamboo.server.Server.main(Server.java:35)
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 com.exe4j.runtime.LauncherEngine.launch(Unknown Source)
at com.exe4j.runtime.WinLauncher.main(Unknown Source)
Caused by: com.thoughtworks.xstream.alias.CannotResolveClassException: myBuilderLabelPathMaps : myBuilderLabelPathMaps
at com.thoughtworks.xstream.core.DefaultClassMapper.lookupType(Unknown Source)
at com.thoughtworks.xstream.converters.reflection.ReflectionConverter.unmarshal(Unknown Source)
... 33 more

This is moving from a working 0.4 to a new release 0.4 (released thurs)