GOS->workflow->workflow overview should show the workflow log showing the status of the workflow until now (workitem name/start data & time/end date &time/decision/status/user name).
Table swwwihead has the fields wi_cd (creation date) wi_aed (end date) and wi_aagent (actual agent)
Table sww_wi2obj has the link to the object.
Table swwloghist has the workitem history.
You could use the way suggested by Karri, since the decision is hard to read directly.But for workflow reports,I usually use BW see Workflow reporting in BW – extractor improvements
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