Hmmm. I think your template may have got messed up.
Try reverting to the original template, and then make the changes suggested in the article from scratch.
To revert: Select the template "vbcms_navbar_link" (do not double click) and on the right side of the list of templates, you shall find a "Revert" button. Revert to the default template. Now make the changes as outlined in the article.
Hope that helps.