Advanced workflows

Hi, I have created an advanced workflow (using kentico 8.1). It contains two custom action steps. This workflow is then applied to my document type. As the document flows through the workflow, everytime the document is edited at any stage in the workflow it should be moved back to step 1 in the workflow. Because I have two custom action steps in my workflow this does not happen, they stay in the same step when edited.

To solve this I am creating a global event handler to handle the Document Update event, which will move it back to the first step in the workflow on edit. I am facing two problems here: 1. How do I detect that just the content has been updated for the document? 2. When I try to move the node back to the first step like this: workflowmanager.MoveToFirstStep(), it moves it to the first step but continues to process the workflow as normal, so the node ends up in the first step , then it tries to move it forward to the next step! It ends up in an inconsistent state. Is there a way I can stop the workflow processing after I move it back to the first step. This needs to be done in the Document update handler.

Any help would be greatly appreciated.