Replacing Case Resolution dialog - How to set case resolution?

Hi,

As many others have found is the case resolution very limited. And you cannot capture answers etc and store them, send them in an email etc.

To overcome this pretty big issue I found this

http://www.powerobjects.com/2012/02/02/use-a-dialog-process-in-microsoft-dynamics-crm-to-replace-the-case-resolution-form/

However I cannot figure out how I can set (With a workflow) the resolution from the resolution field created and used on the workflow dialog to the case resolution field on the standard CRM case resolution dialog field?