If I capture the URL  <http://www.threepeaks.org.au/>  with only the following
filter:

-*

With "No external pages" option ticked, not all the links point to the
external.html page.  The links which do not are dodgy, incorrectly written
ones, eg:

<a href="Library/www.basslink.com.au">blah</a>

This link is on the image top-left of the page.  In my capture it is rewritten
to:

<http://www.threepeaks.org.au/Library/www.basslink.com.au>

and not:

external.html?link=http://www.threepeaks.org.au/Library/www.basslink.com.au

I've tried using mimetypes, and different filters, but I am unable to make it
point to external.html.  Any ideas?