Portfolio adding in images

1

Hi
I am using this album
http://www.koddinn.com/gallery/test/portfolio.html

i have added few pictures in, but they wont show, what am i doing wrong

 
<?xml version="1.0" ?>
<portfolio>
 <picture title  = "Tiny Disk"
   thumb = "portfolio_images/thumbs/tinydisk.jpg"
   description = "portfolio_text/tinydisk.txt"
   image = "portfolio_images/tinydisk.jpg" />
   
 <picture title  = "Plug"
   thumb = "portfolio_images/thumbs/plug.jpg"
   description = "portfolio_text/plug.txt"
   image = "portfolio_images/plug.jpg" />
   
 <picture title  = "Disk Collection"
   thumb = "portfolio_images/thumbs/diskcollection.jpg"
   description = "portfolio_text/diskcollection.txt"
   image = "portfolio_images/diskcollection.jpg" />
 
 <picture title  = "Naut"
   thumb = "portfolio_images/thumbs/naut.jpg"
   description = "portfolio_text/naut.txt"
   image = "portfolio_images/naut.jpg" />
	
 <picture title  = "Alien"
   thumb = "portfolio_images/thumbs/alien.jpg"
   description = "portfolio_text/alien.txt"
   image = "portfolio_images/alien.jpg" />
	   
 <picture title  = "Disk Collection"
   thumb = "portfolio_images/thumbs/skip.jpg"
   description = "portfolio_text/skip.txt"
   image = "portfolio_images/skip.jpg" />
</portfolio>

Can someone tell me