The easiest way to use this is to put it in your footer file as

<%if Username eq 'admin'%><%GT::Template::dump%><%endif%>

Then if you want to see the tags, you just log in as admin and they appear at the bottom of the page. Note that I think this only works on dynamic pages, so to check the available tags on a category page you would need to use /page.cgi?g=categoryname to see the tags.

Laura.
The UK High Street