PSI viewer

Hi;

I am following the turorial http://confluence.jetbrains.com/display/IntelliJIDEA/Lexer+and+Parser+Definition.  I seem to get stuck on step 6 every time I try.  How do I get the PSI viewer to come up when I run the project?  Each time I start the project, I can open a project with my filetype and it gets the custom icon, but I can seem to use the PSI viewer, and the instance of the ide that is run for the project does not include the Grammar-Kit plugin.  Am I doing something wrong?

Thanks.