Image Problems - Where do I start!?

[Nixon]

Hi all,

Please can you firstly take a look at this site:

http://guitarad.co.uk/viewitem.php?id=3

and have a glance at the picture at the bottom of the page.

You will see that it is streched into a pre-defined box, using the HTML width command. How would i make this picture fit the box without streching it. Could this be done in PHP or is there another way?

Thanks. Jack