Create formatter including only image path

Using the Views Theme Wizard, I generated the template for a view that included a CCK image field.

I'm not sure if this is intentional, but the variable output for the image ($field_image_nid_label) contained a full link to the image, e.g. <a href="/imagename">imagename</a></pre>

I actually want to make a hyperlink based on the image, so to make this useful, I will have to strip it back and reformat it as <a href="http://www.somecompany.com"><img src="/files/images/imagename" /></a>.

It would be better if $field_image_nid_label just contained the image name, so we can do with it what we will.