SVG test suite: linked graphic on top of another graphic

http://www.w3.org/Graphics/SVG/Test/20030813/htmlframe/tiny-linking- 
uri-03-t.html
http://www.w3.org/Graphics/SVG/Test/20030813/htmlframe/tiny-linking-a 
-04-t.html

neither of these examples demonstrate a linked graphic on top of  
another graphic (or background colour)
as here:
<g>
<rect x="0" y="0" width="400" height="400" fill="#cca" stroke="none" />
		<g transform="translate(0,90)">
			<a xlink:href="#internal-circle">
				<path fill="lime" stroke="blue"  d="M 165,40 h 100 v -12 l 45 36 l  
-45 36 v -12 h -100 z"/>
			</a>
		</g>
</g>

The result is that our beautiful cartoon of students with learning  
difficulties has links that don't work...
http://www.peepo.co.uk/SVGmobile/portraiT.svgz  check out the cheshire  
cat, and the text links.
That is on tinyline 1.5...

This needs a specific example, Please.
Jonathan Chetwynd
http://www.peepo.co.uk
"It's easy to use"