Amin Mohammed-Coleman: Yes! It looks like you are close.
If you have created the new jar files jbpm-gwt-core-5.0.0.jar (that includes the modified CommandDelegate.java) and jbpm-gwt-form-5.0.0.jar (that includes the modified AbstractFormDispatcher.java file) and reaplace the existing jar files in ...apache-tomcat-6.0.29\webapps\gwt-console-server\WEB-INF\lib, you should be able to see the processes.
Do you have the artifacts (ftl, bpmn etc) in Guvnor?
I am presuming that you have ketp these artifcats in a local directory (using the parameter jbpm.console.directory)
Again, this is required in the latest 5.0 codebase, as the Guvnor is looked into first and then the file system specified by the parameter 'jbpm.console.directory'.
Here is an attachment for GraphViewerPluginImpl.java. This again includes the modification to look into filesystem first. You might not need this, as you would see the diagram after an exception. But, if you include the new jar file jbpm-gwt-graph-5.0.0.jar after including this file, you would not see the exception also.