Workaround for image refresh issue with other modules

yhager's response in regards to the issue with images not updating on the Node page after saving in Node Edit below.

I was wondering if anyone could assist for solution #2 in how to include the timestamp at the theme layer. This issue is causing confusion to users as their changes made in Node Edit doesn't seem to display on the Node after they save (a forced refresh seems to be required at the moment). Your support will be very much appreciated!

@trupal218: the problem you are seeing stems from the fact that browsers assume image URLs never change, which is not the case for image cropping module. The original issue was solved by adding "intelligence" to imagefield module so that it will force the browser to refresh when an image was updated. Other modules, like content profile, are not aware of this fact, and demand a manual browser refresh.

There are two ways to solve this:
1) If you are a coder, you can prepare a patch to content profile in the spirit of the patch in comment #6, and hope it will be accepted upstream;
2) You can also solve this at the theme layer, modifying the image url to include the timestamp;
source: http://drupal.org/node/353405