Urgent: New to Workflow and BPM

Hi Guru,

I am new to workflow, BPM and Netweaver. I have several questions about those concepts.

1. What is/are the different between workflow and webflow. Which scenario should take workflow into consideration? Which scenario webflow can be applied to?

2. What is/are the different between workflow and BPM. If I am going to implement workflow in a company, do I need to implement business workflow as well as BPM?

3. I need clarification on Netweaver platform and concept.

4. What is/are the different between workflow in R/3 and workflow under Netweaver?

5. If I am going to implement workflow integrated with R/3 and Outlook email, do I need to buy new wrokflow for Netweaver and Netweaver platform or alternatively, I can use business workflow module under R/3 system?

Sorry for many questions asked. I am new to those products. I am now working on software selection for workflow technology. My company is going to implement new workflow to client. Thank you very much. Best answers will be rewarded.

Cheers,