Workflow need to start at the node where it was rejected but not frm start

Hi,

I have a scenario where the workflow is a employee resignation custom workflow.

Here the case is - when ever the reviewer or the approver rejects the workitem in the workflow the workflow stops and it returns back to the initializer ie the employee who has resigned...

the moment the employee makes the required changes the workflow starts from the 1st level where as the workflow should start at the point it was rejected but not from the start.....

The point where it was rejected, or the level where it was rejected it has to start at the same level but not from the start or the 1st step of the workflow...

Kindly suggest me that how do i place the scenario where the workflow starts at the node where it was rejected intially...

Thanks in advance,,,

shanky