How to become WF administrator?

Dear SAP gurus,

We're about to go live for SRM 5.0 in our company, and we're still blank how to administer workflow. There are many instance where the workflow is hanging (the status is in process), and we're not sure what to do for this kind of work item.

For instance i have this work item which have a subworkflow. This subworkflow is in status in process. I tried to execute this work item using SWIA, and not successful. I tried to see what happend in the transactional RFC log and nothing there as well. So what should i do in this case?

Is there any guidance somewhere of what to do in each cases? Please help.

John