I have magnifier working within a node (ie. without adding anything to the theme). This seems a more sensible way of using it, but I can't get it working with image cache.

I currently have an image called "blahimage.jpg", and I uploaded it to an image node called "blah". The code below works (here), but I can't figure out how to use it with image cache:
(320x320 is one of the pre-set image sizes)

<?php
    $args = array(
      'magnify' => 4,
      'glass_size' => 100,
      'imagecache' => '',
      'image' => 'http://d514.ecoanarchist.org/sites/default/files/images/blahimage.jpg',
      'title' => $node->title,
      'alt' => $node->title
    );
    print theme('magnifier', 'http://d514.ecoanarchist.org/sites/default/files/images/blahimage.320x320.jpg' , $args);
?>

I've tried commenting out 'image' =>, and changing 'imagechange' => to 'blah', 'blahimage.jpg', 'blahimage'... none of them seem to work.

I would appreciate some more in-depth documentation on this.